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What size carburetor do you run, size engine, use?

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Re: What size carburetor do you run, size engine, use?

Postby MrBo » Wed Aug 11, 2010 9:29 am

357 sbc
13:1
1050 holley dominator 3 circuit (8896-1)
2850 lbs
best et = 9.78
best mph = 139.3
straight Ultra 94 (Canadian pump gas)
drag only
(The pump gas and the 13:1 is not a typo. My intake valve runs in another time zone.)
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Re: What size carburetor do you run, size engine, use?

Postby MadBill » Wed Aug 11, 2010 10:20 am

Wow. What do you run for IVC, coolant temp, SA, etc. to manage that? :shock:
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Re: What size carburetor do you run, size engine, use?

Postby mxzman » Wed Aug 11, 2010 11:24 am

408 sbf
twisted wedge R heads
c-4 trans, 4500 stall converter

267/282@ .50 solid roller camshaft

1 7/8 headers, x-pipe, 3 inch exhaust and mufflers

victor intake

27x10.5 et streets, 4.11 gear

using a Pro-Systems built carb, 950hp based. If i remember right, flow sheet shows 900+cfm. Patrick at pro-systems is not all about cfm lol. Excellent street driveability, starts up "good" cold, idles great, very responsive.


street/strip car, 89 mustang, 3200lbs with me in it.
1.58 60ft
10.40 best et, 130 best mph
(thats with only 4 passes, had engine issues forcing end of test/tuning passes)
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Re: What size carburetor do you run, size engine, use?

Postby MrBo » Wed Aug 11, 2010 12:21 pm

MadBill wrote:Wow. What do you run for IVC, coolant temp, SA, etc. to manage that? :shock:

72 degrees ABDC @ .050”. Spark is at 38 degrees.
I have started runs around 200 deg F, but I don't like to as the car slows down at that temp.
The spark plugs look like the motor is not even working hard.
People don’t believe me, but it’s true.
I don't know what SA is.
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Re: What size carburetor do you run, size engine, use?

Postby Keith Morganstein » Wed Aug 11, 2010 12:49 pm

O.K , I'll play too...

some carb selections from various builds.

355 cu SBC - street rod - Q-jet
358 cu - Circle track. Holley 650 CFM #4777
468 cu BBC - street, show, some strip , 2 X 625 CFM AFB
380 cu - pulling tractor, 930 CFM Predator (VV)
460 cu - BBC muscle car, 850 CFM Holley
505 cu - BBM bracket race, 1250 CFM Dominator
468 cu BBC - bracket race, 1150 CFM Dominator
302 cu ford - street, 650 CFM Holley
355 SBC - Circle track - Holley 4412
"Nil Satis Nisi Optimum"
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Re: What size carburetor do you run, size engine, use?

Postby Troy Patterson » Wed Aug 11, 2010 1:26 pm

redsmokin57 wrote:Carter W1 on 181 cubic inches for stoplight racing in a 1934 chev roadster pickup, oh how I miss that carby, one pump of the accelerator and it would hand crank so much easier than the EFI currently fitted, without fear of kickback and personal injury.
Cheers Steve


I might have a Carter W1. I'll look.

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Re: What size carburetor do you run, size engine, use?

Postby dbusch » Wed Aug 11, 2010 2:23 pm

363" SBF, drag race
12.0 comp
solid roller 265/274, 108+2, .705 net lift with 1.7 shafts
93/100 mix
340/250cfm high ports
ported super vic
1 7/8 header with 3" bullets
dynoed at 656hp at 7900/491 tq at 6200
750 double pumper, venturi at 1.42", tricked out as it gets.

C4 with 6700 7" converter, 4.56 gear with 26" slicks, 2940 lbs: 9.80 at 138.6mph, 6.23 at 110 1/8th mile

customer car:
371SBF
14.7 comp
solid roller 277/290 112+3, .750 with 1.6 stud
114 leaded race gas
325/240cfm Z304 heads
ported super vic
1 7/8 with 3.5 bullets
vacuum pump 10"
made 690hp at 8000, 515 ft lbs at 6200
1050 HP dominator, built by Pro Systems about 6 years ago

glide with 7200 7" converter, 5.71 gear with 28" slicks, 2600 lbs: 5.78 at 119mph 1/8th mile
Last edited by dbusch on Wed Aug 11, 2010 2:32 pm, edited 1 time in total.
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Re: What size carburetor do you run, size engine, use?

Postby treyrags » Wed Aug 11, 2010 2:28 pm

Past and present:

2 x 1150 Dominators on 404" D-stroked Hemi - 70's Modified Eliminator

2 x 1050 Domiators on 337" D-stroked Cleveland - 80's Comp Eliminator

820 cfm on 418" Windsor - street car

950 cfm on 427" Clevor - street rod
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Re: What size carburetor do you run, size engine, use?

Postby novadude » Wed Aug 11, 2010 8:49 pm

Street car.

800 cfm on a really mild 327 Chevy w/ a 214 deg @ 0.050 cam and 9.5:1. It's a Q-jet! :wink:

(Edelbrock 1904 w/ some modifications to main air bleeds, idle tubes, idle channel restrictions)
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Re: What size carburetor do you run, size engine, use?

Postby falcongeorge » Wed Aug 11, 2010 8:59 pm

Heres a few over the years, all street/strip cars
427 BBC 850
427 BBC 1050 Dominator
509 BBC 1150 Dominator
428 BBF 950 3bbl, 830 dp and 1050 dominator (not all at the same time) :lol:
440 BBM 950 3bbl
383 BBM 800 dp
440 BBM 800 TQ
340 SBM 750 dp
340 SBM 850 dp and 750 dp
302 SBF 700 dp
350 sbc 2x650 dp
350 sbc 650 4165
383 sbc Q-jet
There are others, but I will stop there
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Re: What size carburetor do you run, size engine, use?

Postby Troy Patterson » Wed Aug 11, 2010 10:37 pm

I'll add a few also:

- '66 Mustang, 351 Cleveland, fully ported four barrel heads, 11:1 comp., hyd. flat 236 / 242, .581" on 112 lca, Weiand Excellerator w/ extensive work, then later with single top tunnel ram, street / strip - Quadra-Jet; 750 dp stock; modified; same w/ Weber Power Plates; 1.65" dia. venturi 1025 4150 w/ Weber Power Plates
- '66 Mustang, 351 Windsor, dead stock 1969 motor, street, 650 dp; 750 dp; 830 Winston Cup carb; then same w/ Weber Power Plates
- '67 Cougar, 351 Windosr, World Products R heads out of the box then later extensively ported, solid flat 235 / 242, .550" (w/ 1.6:1 rr) on a 114 lca, thermal barrier and dispersant coatings, 11:1 comp., Performer RPM then upgraded to fully modified Victor Jr., street / strip / road course, 750 Demon tuned, then same with Weber Power Plates,
engine came apart, heads ported, cam change, 1.72" dia. venturi - 1100 cfm w/ Weber Power Plates
- '67 Firebird, 400 Pontiac, this motor evolved a bunch and had many incarnations along the way with various carburetors, porting on 670 heads, 11:1 comp., Victor Pontiac intake stock then extensively modified, thermal barrier and dispersant coatings, hyd. flat 250 / 250, .550ish" on a 108 lca then 228 / 235, .540" on a 112 lca, street / strip, 750 dp; 850 dp; 1000 HP; 1050 HP 1.70" dia. venturi
- '71 El Camino, 396, oval port heads ported, 250ish solid flat, single plane, 12:1 comp., 3800 stall / trans break, drag, 750 mildly modified by another (bogger); 1.50" dia. venturi 900 (yanked the tires full weight but for fiberglass hood)
- '68 1/2 Mustang FB, .040" over 428 CJ, ported CJ heads, street / strip, 750 modified by engine builder (dog); 1.50" dia. venturi 900 w/ Weber Power Plates
- '69 Camaro, 454, Performer RPM heads, Performer RPM intake, hyd. roller specs ?, street / strip / road course, 750 HP, 1.72" dia. venturi w/ Weber Power Plates
- '65 Cobra replica, 427, solid flat tappet, Performer RPM, Performer RPM heads, 11.5:1 comp., street / strip / road course, 750 HP; 1.50" dia. venturi 900
- '55 210 Chevy, 406 sbc, Victor Jr., solid flat 256 / 256, .550" on 106 lca, aluminum heads ported (brand ?), 10.5:1 comp., street / strip, 750 dp; 1.50" dia. venturi 900 w/ Weber Power Plates
- '66 Corvette, 396 sbc, Performer RPM intake, cam ?, street, 750 dp; 1.50" dia. venturi w/ Weber Power Plates; 1.65" dia. venturi w/ Weber Power Plates
- '68 GT-350 Shelby, Boss 302, 9:1 comp., Ported Boss 302 heads, factory dual plane, solid flat, road course, 750 modified; 1.50" dia. venturi 900 w/ Weber Power Plates
- '66 GT-350 Shelby, 302, Edlebrock Victor heads, solid flat (specs?), Victor Jr. intake, road course, 1.50" dia. venturi / Weber Power Plates
- '64 El Camino, 350, 11:1 comp., tunnel ram, 3500 stall, 3.73 rear, street / strip, 2 X 650 dp
- '68 GTO, 454, Victor heads, Victor Pontiac intake, solid flat, drag, 1150 worked by another carb shop, reworked by me

I could go on, lots more customer cars.

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Last edited by Troy Patterson on Wed Aug 11, 2010 11:14 pm, edited 1 time in total.
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Re: What size carburetor do you run, size engine, use?

Postby falcongeorge » Wed Aug 11, 2010 11:01 pm

MrBo wrote:
MadBill wrote:Wow. What do you run for IVC, coolant temp, SA, etc. to manage that? :shock:

72 degrees ABDC @ .050”. Spark is at 38 degrees.
I have started runs around 200 deg F, but I don't like to as the car slows down at that temp.
The spark plugs look like the motor is not even working hard.
People don’t believe me, but it’s true.
I don't know what SA is.

I have also hit 13/1 on the cdn 94 on a BB, but it DID push a head gasket into the valley under the intake port. 12.7/1 no problem, BIG cam on 110 lda. Would have to go back and check my notes for intake closing point.
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Re: What size carburetor do you run, size engine, use?

Postby econo racer » Wed Aug 11, 2010 11:49 pm

I use a box stock holley 700 dbl pumpper on my 489 BBC 10.1 pumps gas roller-Runs 6.92 1/8th in good air I use 92-93 octane gas that has 10% ethanol in it too. I shift about 6k :D
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Re: What size carburetor do you run, size engine, use?

Postby murre » Thu Aug 12, 2010 5:02 am

(1)street and strip
cbb 454
pump gas
514hp
holley 850

(2)same engine
demon 1090
536hp
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Re: What size carburetor do you run, size engine, use?

Postby BirdMan » Thu Aug 12, 2010 8:07 am

289 3310 780cfm on F4B dual plane or Shelby CrossRam flat top street / strip, 2818 600 cfm just didn't get it on and mileage was the same when it was driven on street before I started using it for racing.
289/302 800 dbl pump, 850 center squirt drags.
319/347/351C 800 dbl pumps jetted the same, all open plenums.
412 SBF 14.4 comp, 32* timing, 272/280 .650 Bullet cam, ProSystems 1100 Dom. 3 circuit and flow through intake system 360 cfm, 114 Torco race gas, launching at 3,000 either foot brake or trans brake response is Right NOW! Have not run all out all the way as no roll cage just using 3,000 stall, shifting at 7,000 w/lengthened throttle rod not wide open, modified intermediate air bleeds. 10.06's@132.?? 4,000 D.A. 3120#.
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