Originally Posted by ethn_bert
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.
are the XS the same as the XE but soild lifter?
that cam is 2 sizes smaller than the article used
so i am sure that helped with your choice to use lower CR