I race a wissota mod 4 2.3 ford. Has anyone used the Honda Civic aluminum radiator you can buy on ebay for around $70? The reason I ask is a 20inch radiator won't fit between the frame rails without bashing in one tank. Or is there another possibility you guys would suggest? I burn ethanol so I don't think cooling will be an issue. Are those radiators any good or do you get what you pay for? Thanks.