I'm not sure, but I do know I have the 4500 Northwind Intake, and that the Proform 850 is a square bore flange. I may have to switch carb's.
Which Cam do you think I should use and why? I think the 112 LSA will give me better street manners.
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Pure Pontiac Power!!!  
Picture of my actual 69 Judge racing in 1970.
Rare Espresso Brown Ram Air III, 4 speed, manual steering with power disc brakes and factory build sheet indicating 4:88 special order rear axle.
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