Does anyone know the maximum venturi size for highland speedway,for the bomber class.I had a stock untouched rochester from a 67 pontiac 400 , and they said the venturi size was to big.The rules state that it has to be stock size .Just wondering if you have to use a 350 chevy rochester , or can you use any rochester.There not all the same, and there are stock rochesters that are bigger than the plug guage highland uses.Any comments would really help.Thanks.
