318 combo's

I like this thread.
My 318 in my 74 dart is mostly original. New performer intake, 650 cfm edelbrock carb, hooker headers, 2 1/2" with h-pipe flowmaster exhaust, the rest is original engine with 170,000 miles. The tranny is a rebuilt 727 with shift kit. The rear end is stock. Not sure what size and what gears though...