S&S 631

Energy One

V

Guru
Specs say: High RPM street and racing engines, 11:1 and higher ratios. Develops max power at 4500 RPM and up. "good performance cam but expext more wear and tear on valvetrain. 275 degrees duration.:hi:
 

stlmikie

I wish I had more money.
The reason that I had asked is that I just had the cam out and it had the 631. Running the stock comp. Without the compression would it still run better than a 600? With 10.5 would it run better than the 600? Just asking a few questions.I know that the 631 didn't come on until after 4500 RPM.
 
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