ss stalls in reverse

[colby]

just completed a top end build for my 86 ss. Cam, heads, intake. The car wants to stall when in reverse. Also I lose brake boost when this happens.

 

[tetomas]

give us something to go on, what are the cam specs,which intake etc. Off the cuff sounds like too much cam or timing retarded, but with nothing to go on its just a guess.