Just taking a moment to let everyone know about another great job done by Dave W at Old School EFI. I had installed a stock 350 Vortec in an 1986 Chevy SWB. I used the complete fuel injection system off a 1988 R2500 Chevy truck using a carbureted intake and an adapter for the TBI. The truck would start and idle fine but would hesitate and stumble upon acceleration. I sent my factory chip to Dave and he reprogrammed the acceleration enrichment file and the truck runs very well now. Couldn't be happier. Thanks again Old school EFI.