This was the beauty of the class they were VW’s,Subaru's,Chevy's,Ford's .Some guys ran midget chassis, some guys ran old modified chassis, Gene Built his out of a Volvo. He massage the Volvo crank and the block to except Chevy rods and pistons. He made parts that had the Weber carburetors all working in unison. He made his own tools so he could check his own bum steer I never even heard of bump steer in the 70s he wasn't ever satisfied with the car he ran a independent front end , Then switch the car over to a coil over car and then a torsion bar all with the same car.He was meticulous at everything he did I remember him spending a whole winter just porting and polishing his head at his Kitchen table.Back then he was the only guy that ran airplane fuel in his car because the airplane fuel has more oxygen in it. I could go on and on and on about the things that he did that were way ahead of their time.