Given this setup:

AFR 205's with 66cc chamber
TSP 224/224 .581/.581 114
Comp Cams "Stock Replacement" Lifters
Stock 1999 LS1 Rockers

What size pushrod should I get for proper preload, 7.4 or 7.35? I would think 7.4 since the heads aren't milled and the cam base circle is smaller (according to different posts).

Thanks...

 

i would think the 7.40s due to the smaller base circle of the cam,assuming your valve geometry is the same with the AFR heads.i would call tony at AFR just to make sure.