I finally got me some wheels to mount my 28-11.50-15 et streets on. I will be going to a 1/4 mile track next friday. Any predictions on if I can 60' better in 2hi? I ran a best of 1.88 on motor in 4hi. Also would it help to clamp the helper springs? I have read about it but haven't seen many people post differences on them.

 

i dont have helper springs on mine.

 

Yeah but you have caltracs. I have no traction devices.

 

are you grinding your brake calibers down to fit those 15" wheels?

 

and what type of wheels are they. lighter or heavier might make a lil difference. fifteens will help with topend (smaller wheel is lighter). et street on 15's will definately give some good wrinkle wall tho. i had the some on my gto and my chevelle. i dropped from a 1.9 to a 1.75 on the gto and 1.8 to 1.6 on my chevelle by using a smaller wheel with bigger sidewalls for some more wrinkle

 

Yes I am grinding the calipers down. The wheels are some old four wheel drive wheels. Not real heavy but not bogarts. I can run the 26-11.50-15 et streets or some 315/60/15 et street radials.