How much gain,if any, would a set of 1 5/8 to 1 3/4 step headers over a set of 1 3/4 hooker super comp headers on a 383 sbc,13-1,dart iron eagle 215 platinums,super victory,comp flat tappet,.558 550,260,
[email protected] 108,alky 750 carb,3100 lb camaro?