In the old days I always ran a smaller gap on the second ring (less temperature, less ring expansion school of thought). Those were N/A applications though. In recent years I have been running the same gap on both compression rings due to my blower application. On my current R-302 331 (4.030" bore) I run .024" top ring and .026" second ring, pushing ~18 psi boost from the NOVI 2000. These are Childs & Albert moly faced rings on forged Probe pistons. Basically what I'm saying is that I buy into the new "top ring flutter" theory, hense the larger second ring gap.
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Craig
Supercharged 93 GT
"I drive way too fast to worry about cholesterol!"
Then I went to the doctor.... whoa 312! Hello Lipitor
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