MGM Problem

[sleepy23]

Ok,i keep having this same problem with my mgm and i must say it is getting really really OLD. after a couple of quick passes down the street, the motor starts locking up and then going into reverse. it doesnt matter if i am running highend matched race packs or an unmatched pack. still the same problem. i have checked everything and nother is touching that would short anything out. any ideas on what is happening??? at this rate, would i be better off to sell my system on ebay and buy something better?