Low comp 360 Comp single pattern 268 good to 5800 260 good to 5000 both are cheap and both provide good torque and good valve springs not expensive. Manifold LD 340 if you can find one use a 4 hole 1" spacer Timing dial in all by 2200 and get it as high as it will go without talking back{slow staring pinging etc} Carb 650 dbl pumper Holley can be adjusted to suit If you use the Thermo Quad watch air valve adjustment keep it snug so you hear the valve snap back with out slow opening. Headers are must on the 360 with stock heads as the exhaust ports are less then steller Do not run open headers get cut outs if using any of above cams.you could lose .2 in qtr. Mufflers use thrush welded muffler good and cheap! Have fun !