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Injector and exhaust size.

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Old 04-26-2012, 07:24 PM
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Default Injector and exhaust size.

I have a stock short block LS1 I'm putting a MS3 cam with LS7 lifter into and putting a set of Precision Race Stg. 2.5 LS6 Heads on it. It already has a stock LS6 intake and Pacesetter 1 3/4" header. I'm looking at buying a set 42lb injectors and I want to do true dual exhaust with the Magnaflow 4x9 mufflers.
My question is will the 42lb injectors be big enough and what size exhaust should I run 2 1/2" or 3"?

I'm sure there are people here running a similar set up what size exhaust and injectors are people using?


The car has a 3600 converter and a built TGMS 4L60E and I'm spraying a 150 shot of nitrous with a Nitrous Outlet wet plate kit.

Last edited by RobsZ28; 04-26-2012 at 07:30 PM.




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