I would think a mail order tune would suffice. Unless you want to spend the money.
P.S. Welcome to the board!!
Blk 84 Z28 (race car)
Wht 97, M6, SS, Conv., Bld. #35, Free Mods., 160* thermo., 3:73 Gears, MSD Coil & Wires
14.045 1/4m @ 99.52mph, 3816lb., sea level, 87*