Finally got it in. To anyone doing this swap with the Trans Dapt adapter plates, make sure you grind the hump off the back of the original cup mounts before bolting them on!
I actually like to put the cups in a press and flatten the hump out.
Jeff
98 GMC RCSB 2wd, 100% internally stock 305, w/twin T-3 junkyard turbos,Ramjet intake w/42lb inj,12200411 PCM. 4675lbs w/me in it. Best time in 5 passes 13.01@110