Master cylinder/brake pedal question

Is a single cylinder ok for the drag truck or should I go with the dual master cylinder assy? Also, what ratio is recommended?

what calipers are u using, here is some good info iv collected over time, these are the mopar style Master Cylinders u see used in kits, pick the bore diameter that suits your setup

Fenco M1983 used on 1984- 1990

dodge caravan 24mm bore and 3/8 flare threads

Fenco M1860 1-1/8 bore and 1/2 and 9/16 flare

Fenco M1822 1-1/32 bore and 1/2 and 9/16 flare --- 1985 chrysler 5th ave