Same as Mopar iron hemis (smile) . And the actual firing order, this cyl, then that one, then his one here, is the same on Ford flatheads but they are numbered differently. Fearless
Only if you have a 4-9 swap grind cam. Seriously, standing in front of the SBC looking down, rotor turns clockwise as well as the crankshaft- equally important to know, good luck.