1980 camaro 3400# 10.33 @130 best 1.44 60 ft w/ bbc and 3200# 10.32@ 129 1.43 60ft w/sbc

I dont think the spring rate changes the amount of stored energy the 230# spring would be compressed more than the 260# but your ride height will be lower and that might make transfering weight to the rear worse. Try contacting Landrum Spring before you buy the Moroso springs

I ran everything from 4 to 7 degrees and found 5 to work the best never figured out how to measure it going down the track. 0 is what you want under acceleration. 6-7 used to bind the ujoint and never 60 ft any better. I ran modified Comp Eng traction bars they didnt make Cal Tracs at the time . The...