I reviewed the posts on aluminum radiators, and there's a lot of info, but I'm still unsure what to buy. My car is a 1972, and I'm trying to decide between the AFCO #80102N [universal 31x19/no drain/no cooler/$179] or the custom made AFCO #80135N, which is supposed to be a bolt-in with drain and cooler 31x19 for $449. He claims the cooling quality would be the same for either. I asked him about getting a 34x19 (as someone mentioned to do), and he said they could do it, but the tanks would be quite a bit bigger. I also see in Summit the Griffin circle track radiator with 1.25" tubes 31x19 for $285, though it says for racing only. I hate to beat a dead horse, but any advice would be appreciated on which to get and the installation problems. Thanks in advance.