Intake, T body and elbow changed.

THAITED

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I installed a Edelbrock intake, 78 mm BBK t-body/ elbow on my car. Now it goes lean at 4000k, 12.5-1 A/F. I need a re- tune right?

I also installed a 200 amp Power Master alternator. My car runs way smoother now at part throttle. No more miss firing at low RPM, how come? Have I been running my car with inadequate amp/voltag with the stock alternator?

Before running the PM alternator, my car ran like craps at part throttle even with the intake and elbow installed. BTW, I want to sell my Paxton S/C so I can get my Turbo. What is a fair price for the head units and bracket with no suuport equipment, thanks.
 

01yellercobra

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If it's the 03 and it's N/A that A/F is fine. I tuned for 12.5-13.0 when I was N/A. If the old alternator was dying it could cause issues. I've heard of bad alternators causing stalling issues and generally bad driveability.
 

crazycarlo

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Anytime you open up the air intake tract so the engine gets a bit more air it will cause stuff to change like the A/F ratio. You will need a retune to fix that. As far as the running better yes its prob cause of the newer ALT.
 

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