here's what u do u put a water intake cooler (it's a kit i saw that they run cold water through from a ice box in race cars i think
) and instead of runing cold water u run the antifreeze through it u cold keep the engine cool that way to but if i remember right they say that for every 60 degrees increase in intake temps is about a 200 degree increase in exhaust temps generaly speaking of course.
p.s the intake liquid cooler i saw was 3 inch intake and exit and about 6 inches in the middle for the added area