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Old 08-05-2012, 04:36 PM
garrell.770 garrell.770 is offline
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Need a horsepower estimate please

Not sure I came to the correct dept. but I need to describe my engine to the best I can and I know some of you will know about how much hp it is making:
1970 standard bore 350 ci. 4 bolt main block.
Flattop forged high compression pistons, with two valve reliefs.
64 cc combustion chamber Vortec heads.
Comp Cams Magnum 270/470 cam with lifters kit
Edelbrock polished medium height intake manifold.
Carter AFB Competition plus 725, I think, cfms.
Sanderson streetrod headers ran open all the time at the collectors
Not sure about the valve size but the engine has lots of compresion, I am guessing 10.5 to 1 and I think maybe around 340 HP?
It is in my 37 Chevy hotrod truck. It jumps at the slightest touch of the accelerator. The truck weighs 1740 lbs. with me in it and cranks faster than any electronic fuel injection automobile we have warm or after sitting five days.
Any estimates of hp will be apreciated.

Garrell Patterson
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