I will have to do that this weekend and see what it says. I have my fans on all the time. And it still overheats. Its a powerforce dampener. And i have a mechanical sun pro gauge. Worked great with my 302 that was in there before the 390. You think its a possibility that it could be the rad. Cause i never gotone for the big block. Its a 302 one. Didnt know.it.mattered that much figured it would work.