keeping stock bottom end and heads. 1975 350 from a ton. 010 block. cant remember head number. right now i have a factory alum GM intake a a quadrajet sitting on it. running a th350 and 3.73's. 1 5/8 headers with 3" collectors. What cam, convertor, and intake and carb. Im thinking the .488/.488 summit brand cam with a eldobrock RPM intake and 650 holley, and no clue about convertor. aiming for low 13's if possible