The lean condition could cause mild overheating in and of itself. I was driving around with a clogged radiator and removing the transcooler (I use it as my cabion heatercore now), richening the mixture and running water slowed the rate of heatup so much that I could drive around for almost 30 mins before it was in the red. I was running straight water and it would only boil if I opened the radiator (like an idiot) while it was hot. Otherwise no boilover. I had no rust protection and if it freezes overnight.....
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior
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