Quote:
Originally Posted by glhs#116
My 1971 Trans Am has the factory 197 iron heads, factory intake with the factory exhaust crossover. Clutch fan, factory shroud, BeCooler radiator. I run a 195 thermostat because that's what it's meant to have. Does it ping, even when it heats up a little? No.
Sam
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Those engines were lucky to have 8:1 compression. I wouldn't be worried about that one pinging no matter what the temp.
I'm going to take a stab at something and guess you guys out there probably have higher octane gas without all the crap additives that we have here?