Just a 284-484?
..........Here's my old combo..............1970 340 stock bore and rotating assambly........284/484 purple shaft, advanced 2 *.....2.02 X heads with 3 angles on the seats and valves......stock springs and valve gear, LD340 intake, 750 Carter Competition series carb, recurved dizzy..all in by 2200, 727 with factory hi stall........3.23 gears .....245/60/14 BFGs...full bodied 70 swinger......13.2@105 mph........kim.........oh ya, 3475lbs with me in it.......