What's your goal?
My 70RAIII setup for ps racing with stock manifolds picked up 3 tenths a 3 mph going from stock 2 1/4 exhaust to a 2 1/2 mandrel flow master transverse force II system. Another tenth and almost 2 mph when I switched that to the Pypes 2 1/2" transverse sgf70 system
__________________
2019 Pontiac Heaven class winner
https://youtu.be/XqEydRRRwqE
|