05-11-2012, 07:34 AM
There are so many different opinions on copper vs. aluminum and how many cores. If you plan on staying on the street and nothing blocking the air flow, you shouldn't have anyh problems with one of the aluminum 2 cores from Champion - best bang for your buck. Plus they have larger cores and 1" tubes so the surface area is actually more than the 5/8" tubes in 3 and 4 cores. I need to buy one soon too, but mine has very little air movement and a winch blocking the grill.
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig