This is my 1st forum , hope I'm doing it right . I have a 67 GTO , with a new engine , that overheats like the old one . My electric rally gauge is incorrect , and I'm using an infrared thermometer currently . At an idle of less than 1000 rpm temp is about 170 degrees on front of intake , and about 185 or less on radiator tank . At 2000 rpm , I get to 200 degrees at intake , and close to 215 at rad. I've mounted a 3000 cfm pulling , cooling fan within my original fan shroud . The car has Vintage Air , and trans cooler , but will still slightly pull a bag to the grill . It really doesn't do any more for the temp than the clutch fan . I have an aluminum rad that is supposed to flow more than the old one . The engine is a 455 with 670 heads , and 30cc dished pistons that are supposed to make it less than 9.5:1 .
I'm planning to drive to the GTOAA convention in WA from PA on July 9 , but only if car is drivable . Please give any answers that may help . Thanks , Brad