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Old 09-30-2012, 12:32 PM
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Air Gap or performer rpm?

Building a new engine for my monte. But im down to the intake and cant decide on whether to buy an rpm performer or rpm air gap...

Here's the set-up...

350 bored. 40
completely balanced rotating assembly (9.7 compression )
906 vortecs... Completely reworked
750 holley vac secondary
lunati voodoo 268 (227/233 @50)
1.6 roller tip rockers
msd distributor
dacco 2200-2500 converter
turbo 350 trans
3.08 rear (soon to be 3.42)

looking for the best intake for my set up. Hoping for around 375 to 400 horses... But more concerned wit best intake. Any experience as to which performs better would be greatly appreciated...

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Old 09-30-2012, 12:49 PM
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You'll get a smoother idle and better low end throttle response with the rpm than the air gap because the plenum diver is cut down some on the air gap for better high rpm power.
With vortec heads I would use the rpm not the air gap. Just my opinion as the vortecs aren't really high rpm heads.
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