130 tooth vs 143

First off some specs about my car.

1968 Barracuda coupe(3200lbs)
mild 440 - 350 -400 approx HP (plan on improving next year)
4-speed (stock 833)
Lakewood Bellhousing, Centerforce Dual friction 10 1/2 clutch & pressure plate
TTI 2" headers (with cutouts)
Moser Dana 60 4:30 gears (seems to be right selection according to what everyone else is running)

My question is what is the difference between a flywheel with 130 teeth vs 143 teeth in my setup?

Suggestions welcomed

Thanks

Gary