Is it a hydraulic roller cam or solid? Reason being you do not need to add length for preload on the solid roller - you do for the hydarulic. Yes, Mopar small blocks with roller lifters have terrible pushrod angles and are very short...lol.
I set the rocker where I want it (about 1 thread showing out the bottom), then set the checking pushrod to just where I can see the punger start to move away from the clip, then add .030. that's my pushrod length.
