guys i got a 99 auto trans am it runs 9.09 @ 79 mph now but it has 20inch rims and 2.73 gears what will i run if i go 18 or 17 zo6s, and 3.73 gears?

 

it will be in the high 8 i believe. And if your interested in the zo6 wheels, I am selling 4 chrome 17x9.5 zo6wheels with mickey thompson et streets on the rear and mich. phantoms on the front. selling them for 1,000 shipped or 900 picked up. if your interested shoot me a pm and ill send u pics