The car was slowly developing, over time the heads got more work and a solid flat tappet cam was chosen to suit. An 830 annular went on, v-gate shifter and 4.56 gearing. I was still running toploaders but breaking input shafts on a regular basis. I had spied a comaro in an american hot rodding mag with a wierd add on to the rear leafs so myself and good mate Marshy tried to work it out from the tiny pics and make it. It allowed the leafs to be preloaded and worked a treat. A year or 2 later we found out it was a cal tracs system when it started appearing on other cars but Marshy's worked better. It stopped the car moving around on gear changes and allowed it to launch much better. 60' times 1.60 or better, not bad for 4000lbs of car.
I was running 285 McGrearys on the back and radials on the front which always seemed to upset the scrutineers..........