The cam and rockers are new, the pushrods are the originals from the 383. The shop checked them out and said they were fine, do I need to get new longer ones?
The cam was CompCams XE268H
The roller rockers are 1.6 made by Shanon's Engineering
they should be if memory serves mech.rocker/hyd.cam is 8.375" long for B-engines. also i think the stock hydraulic ones are 8.593" long.
so my mistake.. you'll need 0.218" shorter ones from stock.