joespanova wrote:Currently running 2 4224's ....never a problem. But , these carbs still have the 660 base plates and except for the secondary metering block conversion and the choke horns milled off , are box stock. The intake is the Victor Ram.
So , I call Patrick James and he's adamant that the 660's are "dated" and in 2017 a pair of 750s set up for my application will perform better.
I'm not convinced yet as I've seen some stout 434s make big power with a single Dominator. So why would my 377 want more CFM?
Any changes to improve performance DO seem to have hit a "wall" though. Larry Meaux seems to think I have a restriction in the induction somewhere...............and since the only things never changed are the 660s I'm beginning to wonder.
The cars runs high 9.30s @ 141ish. 2975 lbs.
Joe says he ran :
I ran two 1050 Dominators on a 377 way back in 1990- It made 710 HP at 8000-- We turned it 8800-9000 in the car-
It ran 970 at 139 with a 2 speed powerglide and 5.57 gears
JOE SHERMAN RACING
you're running : "The cars runs high 9.30s @ 141ish. 2975 lbs with 377cid Brodix Track 1 Heads 2.080/1.600 valves"
i think you are doing great !
theres BBC and SBC bigger engines with better Heads that are not going as fast as you
i have (2) Murray Jensen modified + Dragstrip proven 660's with 850 base plates
likewise an Edelbrock Pro Ram II i band-sawed plenum apart , maxed-out Ported, then welded plenum back together
that should be much better than yours
if you want to drive down here to my Shop ( take a Vacation ... have some fun Dyno testing
)
i'll give you a "Free Dyno Day session 10+ hours " ... you just supply about 15 gallons of your Race Fuel, any oil + filter changes
plus any gaskets + parts you want to test
need to bring your Headers + gaskets + bolts , etc
any other exhaust system parts ?
your Starter , shims, bolts, water pump ?? , Vac Pump , valve cover gaskets, timing light, etc
any and all spare parts like Rockers, pushrods, Jets, needle/seats, spark plugs, distributor cap/rotor, wires, etc
Intake gaskets to use in manifold swaps ... likewise a few Carb gaskets and Bowl + Metering Plate gaskets would be nice to have on hand
Bring your Weather Station or whatever you are using to measure/record Dragstrip Weather conditions
so i can see how yours compares to mine ... very important for correlations !
the single biggest mistake i see Racers make => is not to bring every and all spare parts to the Dyno
because you never know what little part might delay or prevent us from Dyno testing ?
i'd like to first Dyno test your Engine exactly like your last Runs you've made to establish a Baseline.
bring ET Slips + as much Run Data as possible .... we'll see exactly how much TQ and HP you were making
... along with my Softwares, i can see the HP you are making at each and every foot distance down Dragstrip
to compare to Dyno readings... very important to consider for a 4 or 5 speed manual trans because of RPM/SEC Rate in 1st thru 3rd gears
... its going to be way higher than 600 RPM/SEC on my Dyno tests
then start changing parts