Rough HP estimate
Thread Starter
Instructor
Joined: Jan 2003
Posts: 188
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From: Flowermound Tx
Rough HP estimate
What would you all's rough estimate of horsepower & torque be for a stock 74 454 with Holley 650 spreadbore & headers ? Factory is 270 & 385.
Thanks for your thoughts
Race Director
Joined: Apr 1999
Posts: 11,520
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From: CORVETTE 77 385 C.I. TEXAS
Re: Rough HP estimate (Porch40)
Holley 650 spreadbore over properly set up Q-J. +0
Headers through stock ex., maybe +15.
I could beat it w/ a supertuned stock 74 454, which includes mods. to the emissions equip.
Add low restriction mufflers & crossover pipe. What it really needs is more cam.
:cool:
Headers through stock ex., maybe +15.
I could beat it w/ a supertuned stock 74 454, which includes mods. to the emissions equip.
Add low restriction mufflers & crossover pipe. What it really needs is more cam.
:cool:
