Got the new Summit aluminum radiator in and the new hd trans cooler in.....seems to be working pretty well. I KEEP THROWING BELTS !!! Sorry for shouting. I've bought different sized belts, different manufacturers belts, ran straight edges along the pulleys, sanded the inside of the pulleys (they were screeching), new motor mounts. (68 FB conv w/455) When I hit the gas pedal in the "full go mode" it's fine until I throw 2nd gear. (TH400) Then I can watch one of my belts lay on the road behind me and usually the other belt is laying over the carb. Today they both popped again and the temp climbed through the roof. I was about 1 1/2 miles from my house so I drove it home and watched it boil over in my driveway. Went back with my truck and retrieved the belt which was way twisted but not split. HELP !!!