Pumping 190-195 I've found very tough to run on pump gas. Had a couple of engines back East where I had easy access to 94 pump gas and these engines were still VERY sensitive with a conservative tune and cool temps.
Out here on our crappy 91?? No way. Hopefully retarding the cam a bit knocks that pumping number down enough for you to run this 91 cat pea we have.
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