I have a TH350 Reverse manual vavle body, stage 3 shift kit, and racing clutches. The problem that I am have is that we got the car started and hit the gas the car leaped. This is the first time with this type of trans i was wondering if the modes have anything to do with this problem? the linkage i believe is is park.

 

...either your linkage is wrong, adjusted wrong, or somthing's f'ed with your valve body. Could be adjustment, could be wrong linkage somewhere, could be a check ball in the wrong place....one way or another, the car should never be able to even twich in park.

 

Yea I'll see if i can have someone check that out. The dude that I had build the trans, I can't reach him, and i have no idea about any type of transmitions.