Thread: ATX rebuilds
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Old 12-28-2008, 12:43 AM   #11 (permalink)
Z63R
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Default Re: ATX rebuilds

^ ^ ^ In addition to that performance rebuild, you'll probably need a performance-calibrated valvebody (FRPP has sold them; LenTech modified them for Ford) -AND- a digital tune to take care of what the VB doesn't... the 1-2 shift which is controlled by a pulse-width-modulated servo.

RallyRacer should have more info on the above; iirc he's posted a good-but-short post on a do-it-yourself calibration for the 4F27-E using, I think, an SCT XCal.
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