Having run 340 NHRA Stockers from 71 always a stick shift. I have run Crane,Crower, Cam Dynamics, Isky and Comp cams. I had the first HC 340 Stocker to hold the record in the 11's and the 10's I also had the the first LC 340 to hold the record in the 11's and 10's. When Cam Dynamics gave me one of their first Stocker cams I went from shifting at 7000 to 7500 and we went a bunch quicker. The current special comp grind on an all out kill run has been to 8000. I have run a Stocker grind on the street it has no bottom end but sounds killer nasty. I have a video of my current 6 pack engine on the run stand but it won't let me post it here.