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Old 12-30-2016, 02:57 PM
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Join Date: Feb 2012
Location: Keller, TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
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I have an adjustable PCV and the catch can is mostly empty. I did the measurements and the intake was mostly square - one corner was about .020 while the other 7 were less than .008.

The machine shop has the heads and intake. He is going to check the valves and guides and square the intake.

Brent, do you recommend using RTV on the bottom of the intake gasket to seal it from the lifter valley? I used RTV around the water ports but didn't apply any to the bottom of the gasket.
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