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(Another) 3800ish hesitation

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Old 07-09-06, 03:24 PM
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everything will be okay

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(Another) 3800ish hesitation

i just finished my rebuild and swap of a JDM S4 turbo into my NA.
the car seems to run decent until almost exactly 4150.
it sputters and dosent accel past that.
i should also mention that in free rev, (clutch in, or in nuetral) it will rev to whatever i want, but it is not smooth, like if i hold the pedal 3/4 down, it randomly goes between 4700 and 6200.
i have an ACT flywheel, new Denso Primarys (550cc), an intake and sidepipe.
not a whole lot of mods.
I have a boost gauge and A/F gauge, and boosting or not it wont go past that point. also, if it helps, the A/F says its right on the rich/stoich line (two yellows, two greens)
any advice would be great!
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