My engine is being built on an 880 factory roller block.
The factory roller cam pushrods are shorter than flat tappet pushrods, 7.2" vs 7.8" respectively.
The pushrods I have from Comp Cams are 7.205" per their specs.
My can is an LT4 Hot Cam regrind by Willhoite's Cams, so the base circle may...