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Originally Posted by aves911
Your timing is whacked. I've never seen a timing curve shifted that high before. Also when you were on the dyno, did they hook up the wideband, that would be very beneficial.
As another point of advice, if your pump is a 255 HP you will need to switch to an aftermarket regulator. FPR overrun makes accurate tuning nearly impossible.
As far as leaning or richening out, with a timing curve like that, its hard to say what you need to do without accurate AFR data.
Sorry this isn't much help
-Jacob
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Yes they hooked it up to a wideband O2 when they dynoed my car. I will get an aftermarket fpr soon. Could the reason I lost 20 horsepower to the wheels when I upped my boost be because I have a stock FPR? I have a loud, vibrating, suction rubber noise that happens every 1 second to half a second everytime I start to boost to finish boosting. Could the stock FPR be making this noise??