oversized valves,port match header a 261 duration cam with an adjustable cam gear. boost your compression and run the arp studs as mentioned. set your quench tight to about .007" run a heavy flywheel. msd ignition box. run a wideband o2 sensor to a wideband air fuel gauge so you can tune on it easier..those dual carbs are a ***** to tune from what ive heard, i dont know first hand though.