Quote:
Originally Posted by WildBillyT
4150 flange. Right?
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I have no idea

Its a square thingy thats not a stock LT1 intake.
Quote:
Originally Posted by S.J.SLEEPER
make one? I think I have some 1/2" aluminum t6 sheet
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I may, making a plug for the opti at work, may just make one on the mill.