I had an 8896 and sold it and got the two-circuit 8082, since its essentially alot leaner on the idle & transition circuits. Regarding the 8896, the idle & transition circuits, as well as the intermediate circuit, are way way too rich, as confirmed by on O2 sensor and Quickfuel people I spoke with. The main circuit is OK, (main jet & power valve circuit). The idle & transition circuit is jetted from fixed, non-changeable (not easily anyways) fluid jet restriction and the idle air bleed. The emulsion feeds both the idle circuit and the transition circuit. The idle mixture screws merely limit the amount of the emulsion. But they both use the same emulsion/mixture. So you must lean this out by enlarging the idle air bleed by about .008-.010 or so. I forget exactly but alot. Holley says no more than .003-.005 on air bleed changes but that wont do it. Unlike main jets, you can drill these; Holley only sells in packs of (10). The intermediate circuit is way way too rich. The is no real fluid jet to speak of in this circuit to reduce, so again air bleeds open way up from .050 to .070 I believe. Whatever size it had, it got enlarged by .020, whicj is alot. The delays the activation of the circuit but this actually helped too. I also installed fluid jets in the metering blocks, right where the intermediate tubes flow from. I had .050 ID diamater brass tubes, which were .25 long. This combo worked reasonably well, but I still believe this intermediate circuit was unnecessary, and way too rich, so I got a two-circuit which works much better on similar engine. So in summary, if you open up idle/transition and intermediate air bleeds by alot (.010-.020), it will help immensely.
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