Aluminum Head / Cam Recommendation needed for 1972 Blazer K5

[MikeB]

Originally Posted by Accelo

I
Stay under 212 deg duration at .050 at the intake on the cam, you will be happy. You will get 75% of the power gains without the headaches. Especially towing and the wife driving. Try to avoid the temptation of going big on the cam.
Cheers

I agree. Some would say that's too small, but it's interesting that GM used "only" a 196/206, .431"/,451" roller cam in their RamJet 350 and HT383 crate engines.

I used that cam for a 355 with Vortec heads in a 82 C10. It was essentially the RamJet engine, but with a carb instead of EFI.

The engine had tire spinning torque right off the bottom, even with a 2.73 axle! And it easily revved to 5500, which I rarely did.