[1QuickS]

I have a modification kit to change the idle air correctors so the lean transition may be adjusted in the same fashion as air correctors change main circuit richness. Zeniths and IDTP Webers were emissions compliant and had a lean progression. PMOs and most performance Webers (two barrel IDAs and DCOEs to name a couple of familiar ones) incorporate idle air jet tuning but our Webers and Zeniths came with fixed correctors, probably to keep us from fooling with them. The Weber IDTPs used 1.40mm air correctors, the Zeniths had 1.60mm and the IDAs had 1.10mm for the 40mm versions; a larger air corrector results in a leaner transition.

Send me an email if you wish to find out more about my kit.