Build suggestions for 340?

RustyRatRod said

I thought "effective stroke" was always HALF the total stroke. That number seem strange.

Click to expand...

I thought the same thing, but AJ has examples of 2.5, 2.6, 2.7...so I don't know where it comes from or how to calculate it. (I'm thinking it does have something to do with the timing of the intake valve closure after BDC.)