I think each fan is 25 or under amps. So dontnecessarily need a 4 core. Im sellingmy brother my rad for his 302 so i can get a big block one so the port for the bottom rad hose will be on the right side since the outlet for the water pump is opposite as the 302. Just deciding whether to get3 or 4 core. I will switch the fans hopefully today and see what happens. Ok well that explains paint burn off. Will still have to recheck actually timing thisweekend hopeully