Quote:
Originally Posted by BIGJOE
You CANNOT run 11 to one compression on 89 octane, under ANY circunstances. 10.5 to one with 91 octane will work OK. To get a mild driver camshaft, just spread the lobe centers out to 112 or 114. This will tame it down alot. By the way, flat top pistons on a 347 will give you around 10.5 to one, which is very good.
JOE SHERMAN RACING ENGINES
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When I play with my desk-top dyno and decrease the duratinon on the intake side,making it open later it changes the lobe center from say 110 to 114. This changes shows a good 10-15 hp gain. Does this actualy work in manner or does it make the ramp rates to steep?
