Not Ranked
I don't think I have any pics of it on my present computer, I do think that I posted some 2 or 3 years ago on here on somebodies thread sorta like this one but don't remember who's or when or subject title---
I'm getting ready to go to Colorade for a buddies 50 anniversity and we're going up Pike's Peak on Sunday so I will take some pics and post it here next week
Basicly, It creates a path for air that has been thru the filter a way into the manifold, and the center of the base plate puts it into the best place--If you look at the base plate in the pic in this thread, it has a gasket on it blocking the view of the slots(an X that is milled connecting the four throttle blade bores) but you can just make out the end of the slot in the bore facing the camera. That jet that is there then restricts/regulates the amount of air that can pass into the manifold without going thru the throlle blade bores.This method of regulating the idle air flow there then lets the idle circuits and transfer slots to work to perfection---(remember the older holley big engine carbs had holes in the throttle blades?) well, they were too big and let too much air thru for the carb to idle, so then you had to open the blades for idle so it idled at high rpm, which then advanced the timing which then dieseled when you tryed to shut it down????????????????
This system will allow the engine to idle at 850 or so and below the rpm where the ignition advances and the proper function of the transfer circuit will let it REV off idle like the modern FI cars
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