I would say a lot. One huge part of 1/4 mile is early acceleration. Gears make a big difference in launching. 3.31 are not going to transfer near as much torque as 3.73's.
Chevy runs deep, don't step in Chevy.
chevy runs deep, Don't step in chevy!
289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.