Just talked with a local hotroder with a 427 in his cobra. He had major heating issues until he went with a Zirgo pusher electric fan. He swore by it so I called the company
and wow! They make a 3630 CFM 16" fan for around 220.00. My american autowire kit has a built in 40amp fan relay, and this unit only draws 10amps! The nice thing is It will cool a larger area of the radiator than the twin Spal setups. They also seem to have a good rep, Summit sells them and says they're good units, with limited lifetime warranty. I guess now it's just save up after vacation and I'll be good to go. Thanks again for all the valuable input.