I'm currently running Crane Energizer 1.7 roller rockers on a mostly stock engine. I'm getting ready to install a set of ported E7TE heads and was wondering how big of a cam (lift) can I run before I start pushing the valves into pistons? I'm already running and Edelbrock/Holley intake/carb and have a set of Hookers that will go on with the new heads.
Also does the different ratio also affect the duration or just lift?
Also does the different ratio also affect the duration or just lift?