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Originally Posted by jetpilot
How will i know about the right figure like the 13.2:1 Will the FPR have a guage that i would be able to read it from ? Should I still buy this FPR if I buy a CAI... wouldnt the CAI help the engine run a richer?
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Jairo,
Mike's advice is simple:
If you plan to install camshafts, plan on buying a HS CAI and an adjustable Fuel PRessure Regulator (or have a reprogrammed ECU that runs richer mixtures in the upper rev range).
If not (i.e. if you stick with stock cams), get an AEM CAI.
As for leaning out, do not be affraid. From you dyno, you are close or below 13:1 all the time. From 7000rpm up to 7500 rpm (where our rev limiter is et) you go from 13:1 down to 12-12.4:1. The peak in the AFR curve that scares you happens after 7500rpm when the rev limiter cuts off the fuel.
Chris
