figuring compression help needed.

Jeff, you need to realize all these numbers thrown at you and the ones you are providing are useless UNLESS you have measured and verified them YOURSELF.

On the other hand, he has said he already owns most everything, so you gotta assume he's going to bolt it together. I'm with you tho, for me the learning myself is a strong part of the hobby (i'm not a mechanic, nor a machinist). HTH, Lefty71