This weekend I did some suspenion work to my 90 Gt. Had all stock before. I put on the Eibach Drag Launch kit, Lakewoods 90/10 front, 50/50 rears, lakewood lower control arms and ford racing uppers and full length subframes connectors. I boxed in my battle boxes also. Like I said I had all stock stuff before. Car would 60ft 1.60's-1.70's at 5000 rpm launch's. Does this seem to be a good combo? What air psi should I use in the rear air bag? Thanks