Performer Eps vs Rpm ?

[Monza355]

Would there be any noticeable difference between either of these manifolds on either end of the powerband on a mild 350-375 hp Chevy 350 engine with 5500-5800 rpm redline. In a typical tall geared stock stall medium weight (3600 lbs) street car ?

[Carnut1]

Would there be any noticeable difference between either of these manifolds on either end of the powerband on a mild 350-375 hp Chevy 350 engine with 5500-5800 rpm redline. In a typical tall geared stock stall medium weight (3600 lbs) street car ?

Eps would have the edge with low rpm low horsepower application. No notch in the divider and smaller mcsa runners. It is a nice manifold.

[mag2555]

X2 on the Manifold, then top it off with a 750 Carb and you will have the best of top and bottom power that could be had in that HP range.
Fine tune it with a 1/2 to 1 inch Carb spacer if you have the freedom of height.

[wyrmrider]

carb spacer divided also

[psychomotors]

carb spacer divided also

Why not an open spacer?

[Carnut1]

carb spacer divided also

Why not an open spacer?

You will lose a bunch of low end torque with an open spacer on a mild combo.

[Old as Dirt]

I cut down the divider and added an open 1" spacer on an EPS w/650DP Holley and lost a bit of bottom, wouldn't turn the tires as easily from a dead stop with an automatic and stock converter.. but where it was starting to lay down @ 5600 before.. now pulls to 6000 much better.. Imagine it's close to the same as the RPM manifold..

[BOOT]

I notched the divider on an action plus and when I tried a open spacer it killed the low end. The rpm was better bottom and top, still I'm not fond of eddy quality so I'd recommend a SHP

[Monza355]

I don't want to go with an air gap style Intake manifold in this application because of the climate and altitude this engine will see during the winter time. I'm even considering some way to heat up the manifold during cold winter starts. Similar to if I left at least one heat riser in the head open.

[cjperformance]

Go for the EPS on something in that (or more) HP/rpm range. For a "streeter" with typical street gears/convertor the EPS will outshine the RPM anyday.

[pdq67]

How does the 1st Performer do here compared to the ESP?

The old 2101 jobber from the early '80's...

Add a 1" divided open spacer and go sorta deal is all?

pdq67

[cjperformance]

How does the 1st Performer do here compared to the ESP?

The old 2101 jobber from the early '80's...

Add a 1" divided open spacer and go sorta deal is all?

pdq67

I dont have any experience with 2101 v's EPS sorry. But it would have to be pretty good to out do the EPS everywhere in the EPS's rpm range

[BOOT]

I don't want to go with an air gap style Intake manifold in this application because of the climate and altitude this engine will see during the winter time. I'm even considering some way to heat up the manifold during cold winter starts. Similar to if I left at least one heat riser in the head open.

Then use the eddy, weiand or china taller dual pane w/o the gap equivalent, unless you need the clearance I'd always go with the taller intake even if it's not air-gaped.

[pdq67]

And imho, the old Holley 300-36, true high-rise intake is still a heck of a nice piece!!

As well as the old school Weiand 8016 Stealth intake.

Pick either one up on Ebay.

pdq67