How much HP?

[vector1]

i have something similiar with 9-1 comp, and it is a shade less then 500 hp on engine analyzer sim program using an old performer rpm manifold, showed about a 50 hp gain using a vic jr. rpm air gap might be the best of both. max tq was 4700, max hp was around 6000.

[Lightingrod]

Originally Posted by vector1

i have something similiar with 9-1 comp, and it is a shade less then 500 hp on engine analyzer sim program using an old performer rpm manifold, showed about a 50 hp gain using a vic jr. rpm air gap might be the best of both. max tq was 4700, max hp was around 6000.

I had both an RPM Air Gap (Dual Plane) and a Victor Jr. (Single Plane). I went with the Dual Plane RPM, though some friends and builders tried to talk me out of it! From SIMS, the dyno results of similar engines, and my own experience (BBC). It seemed to me that if peak HP was under 6500 the dual plane RPM was a better choice for the street. With my heads and cam I think it was borderline and I could have gone either way. I went with more mid range torque with the loss 25-30 top end HP.

vettestr/Tim Brewer

All true about dyno numbers, even an educated guess is still just a guess and small differences can sometimes make big differences in final numbers! Friends and even Comp Cams recommended more cam and the Victor Jr intake, I went the more conservative route!

As to the 700R-4, the TV adjustment is everything and you must check pressures! I'm going with a "Full Manual" valve body, no TV required but I will check line pressure!

Hotfingrs

"IMHO 4.11 gears coupled with the 3.06 first gear ratio of your trans will make first gear worthless. You've got way to much rear gear."

I think you may be right but it should be FUN! Even with the current engine I run drag radials all the time!

Al