Do I Need To Rejet My Carb

[ShutYaPieHole]

I swicthed from performer intake to a victor jr. now i think I may be running a little lean. Can that happen by just
changing intakes????????
509 BBC
9 to 1 comp.
Clay smith h-300...570int/570exh
990 heads w/pocket port
performer intake w 850 dp
Indar 4" exhuast
JC PUMP W/AGGRESSOR A IMPELLER
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[ursusarticus]

It's quite possible, what you did was go from a dual plane manifold to a single plane design. What happens is now instead of two plenums each feeding half of your engine, you have all eight clyinders feedin off of a common plenum. So it's a good guess you might be a tad lean.

[ShutYaPieHole]

thanks