Originally Posted by matts37chev
I also, have based my engine build on that series of articles (it helped me choose a cam)
but I was a little farther into the head and cam upgrades that they did in later articles, with the same motor.
so do you have the peanut-ports?
and did you use the XE268H cam?
the reason I ask, is I am curious about the lower CR
Yes, If you read my thread it states that I used the peanut port heads with a Comp Cams xs256s camshaft. I ported and polished the heads with bulk of my concentration on the exhaust side. I used stock valve size, upgraded springs, and the matching comp cams stamped steel roller tipped rockers with 1 piece push rods.