Join Date: Jan 2004
Location: Winston Salem, NC
It sounds dead lean like a major vacuum leak or something. I don't know squat about EFI cars so I can't guess as to the cause other than a vacuum leak but a leak will cause it to run hot due to lean mixture and a lean mixture will up the idle RPM as well as make it stumble when you slam open the throttle. I wouldn't worry about trying to keep it cool with fans, etc....something else is causing this and needs to be found.
69 Camaro, 3650lbs., 400ci, TH400, Coan 10" converter, 3.50 gear
D1SC, pump gas, 9:1, 10 PSI, Water/Meth injection
1.325 60', 5.988 @ 115.4 (carb)
Switched to Super Sniper EFI 2019