I've learned here about the proper quench distance. Makes sense, the tight quench super mixing the mixture trapped between the head and piston...
SD455SJ built a mild 400 with a seemingly smallish cam (cam was perfect for THAT engine!!!)excellent quench, excellent power, excellent build!!!
Chief used to post some hre. One time he was looking for some relatively thick head gaskets, like .080 inch. Using them on a turbo'd engine. I don't have the knowledge why a turbo engine would not like tight quench, like a NA engine. May have to do with heat, already super mixed mixture, I don't know...
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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.
Shut it off
Shut it off
Buddy, I just shut your Prius down... 
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