I have an 86 F250 with a 351 windsor fueled by a variable venturi carb. I cannot find numbers on this carb anywhere to get rebuild kit and am thinking of just changing out the carb for something a little more "user friendly". No one that I've talked to can tell me what to look for or what will interchange. Getting bout 7mpg now and the smell of raw fuel is very overwhelming! Truck is in very good condition with less than 100k miles and 4 speed manual trans. This things a pullin beast but this issue has turned it into a pos!