318 to 360 swap
Hi, Not to go against rumble, but the 904 has a much nicer first gear if you build it for use with a 360. Since the 360 is externally balanced, you'll need a weight on the converter or the flex plate. I went with a B&M balanced flex plate, so I could get any mopar stall I wanted without having to worry about the weight.
My combo is:
360 with 340 grind cam, edelbrock intake/carb 600cfm
Mazzinoli built 904
Hughes 2500 stall
B&M flex plate