I had 373's in my car, kb 1.7 built block, blower cams, auto, and recently switched to 4.10's. First of all I'll say that I dead hooked with the 373's and bfg dr's, 1.80 60'. did not feel any spinning. I have yet to run with the 410's at the track, but they do feel awesome on the street, side ways shifts, I know Jim Fitzgearld, modularpowerhouse sponsored car running 10's on slicks and street driven to each event runs 410's with his kb 2.2, auto