Quote:

I'm not sure what a decent CR means,




Generally, I'd say a cranking pressure in the 180-185 range, and a DCR of 8.5 with the aluminum heads.

Just for grins, I ran my combo as installed vs. having the intake valve close 4* later. Here are the numbers: 12.4 static; 9.15 dynamic; 189# cranking. 12.4 static; 8.85 dynamic; 181# cranking. All @ 6000 ft. altitude.

I use this online calculator...www.wallaceracing.com/dynamic-cr.php

Last edited by 64Post; 03/17/09 03:27 PM.