Hey I have a 1964 Grand Prix I just had the 389 rebuilt. .04 hp cam 750 holly 4brl stock heads headman headers 3" x pipes with headman mufflers. Now dealing with the slimjim trans. Just picked up a chopped 1947 Plymouth Special Deluxe with a Buick 231 odd fire. Posted using the Full Custom H.A.M.B. App!