Hp guessing

[Unit 5302]

Originally Posted by PowerSlideGT

Hey so what about a 286 duration .542 lift? and a elderbroke performer rpm 5.0 intake?

Really, this probably belongs in Windsor Power. Anyway, never use the advertised duration without the rest of the camshaft specs and manufacturer.

Advertised duration differs by manufacturers, and it's not necessarily the best tool to measure true flowing duration on the heads. Ford's advertised duration is at .003" of lift, which is basically nothing. Other manufacturers use up to .006" of lift for advertised duration.

Duration at 0.050" is what you should be quoting. I would guess from the specs you provided the cam's true specs are in the neighborhood of:

.542/.542, 226*/226*@0.50, 286*/286* adv., LCA 108*, LSA 108*

That's the kind of information necessary to gauge camshaft performance.

Personally, I think you're a lot better off going with your current setup and a supercharger.