Quote: it is the poly rear mount that caused it you cannot do that with solid engine mounts you need a solid rear trans mount.
I don't know his problem, but that isn't it, IMO. I have been running a front motor plate, with a fore-aft "limiter" (no movement) with a stock (new) rubber trans mount. 7-8 years, ladder bar rear suspension and minimal pinion angle (correct for ladder bars). And this car launches hard...
I'm with Jim..... I would NEVER run a solid trans mount... if the chassis twists it will break the tail shaft For you pinion angle Caltracs calls for a 2*-4* angle (less than stock type springs due to less wind up)
