[Steve C.]

Example, using the intake lobes for conversation in comparing the Crowers tiny 60240 cam to one at Bullet Racing, their HF260/300 lobe.

The Bullet lobe has less advertised duration with 260 degrees but the same 210 degrees duration at .050" lift. It has .450" lift vs Crowers .422" lift, beneficial if it can be utilized.
The only unknowns here is at what tappet lift are the two lobes advertised duration rated at and the .200" duration numbers.

https://www.bulletcams.com/Masters/HFlobes.htm

Using the calculators available at Wallace note the affects of the reduced seat timing.

http://www.wallaceracing.com/Calculators.htm

A similar situation could be applied to the exhaust lobes. And again noting any lobe separation desired could be utilized with a custom ground cam.


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