I can't find any comparisons for Clifford and Offy intakes. Does one out perform the other? I have a 1949 Chevy car, stock 250, hei,with a 3speed. I bought a set of clifford headers, also I may install a mild cam, and not sure the best way to go for the intake or cam. One last question, I was told by spliting the exhaust and then combining it into an expansion tube and using a 3" tail pipe will enhance performance. Is this true or only for sound effects? Regards
