Quote:
Originally Posted by MKS427
Not enough details about the engine. That said, 520 hp would be about the best you could get out of that engine set up for pump gas and street duty. That set up would sacrifice low end torque/driveability.
Now if the motor is set up for low end torque, look for a dual plane manifold, top end horsepower would fall. Then torque is the number you would want to look at. Horsepower is a simple calculation: tq x rpm / 5252. 5252 is where every horsepower and torque curve cross each other. Therefore, 480 hp at 5000 rpm is substantially better than 480 hp at 6000 rpm (on identical engines).
FE heads do not flow as well as most modern heads especially aftermarket ( my assumption is that they do not have the physical space internally), so comparing hp per cu in from one engine design to another, is not apples to apples.
Good luck,
Mark
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Thanks Mark, you've outlined several good answers to my questions. It's great that you're willing to discuss them. I agree that torque is what gets the car going.
What engine do you have ?