60 ft trouble

hotrod68 said
Well I ended up buying the whole cal trac set up including springs and shocks, I'm also having the driveshaft shortened so I can move the rear end back forward to where it was, and the slicks only have about 25 runs on them, I'll let you all know how it turns out, thanks for the thoughts.

You did the right thing....with the complete CalTrac setup....shocks, bars and mono-leaf springs plus Cal Trac 90/10 frt shocks.
Be sure and do the following on your Cal Trac Setup:
1) after installing the mono-leaf springs and before you install the 9 way Cal Trac shocks make sure you don't "overtighten" the rear shackles. Getting one guy on each rear fender you should be able to start pushing the rear end up and down and almost "bounce the rear of the car like a basketball".
2) With a foot-brake launch set the shocks on 9, stiffest setting.
3) Call Cal Trac Tech and tell them your set up and they will recommend a settings for the pre-load.
4) Make sure your front A-Arms allow the front end to move up and down easily...I rebuilt mine..
5) You need 5" of free front wheel travel. You want the front end to come up 5" on the launch before the tire lifts off the ground. To get this 5" of front wheel free travel I just loosened up my torsion bars and let the front end "sag". To measure the front end free travel, merely put a yard stick up to the lip on your front wheel well. Lets say it measures 34" at rest...then put a jack under your k member and jack up the car...the car should lift 5" before the front wheels come off the ground...the front tires should lift of the ground when the measurement is then 39".
I did the install exactly like this. I run 16lbs of air in my 28" M/T ET Streets ( you will have to experiment with yours for best tire pressure) and launch at 3000RPM off my foot brake (no trans brake). (Cal Trac recommends launching at 3000 RPM to "shock" the rear end...I have a 5000 Flash Converter).I put a white stripe on the rear tires and made a video of several runs. The rear tires do NOT spin or break loose...it just launches...and it pulls both front wheels about 7" off the ground for about 6 feet..perfect...and this is on a 3640 lb b-body coronet. Reduced my 60' time from the 1.65's to 1.45's. My car runs 10.50's at 126mph. 3640lb B-Body Coronet. 505" making about 675HP on the engine Dyno.
Comp Flat tappet cam, 12.2-1 Comp, INDY SEZ Std Port Heads, Hooker 1 7/8 headers with 3" collector. Edelbrock Victor Single Plane Intake with Super Sucker 4150 t0 4500 Adapter with a new 1050 Dominator. 4.30 Dana with spool.