| Holley 08670 Street Avenger Carb, Install report [message #61604] |
Sun, 25 October 2009 16:38  |
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Well yesterday I finally did it, I installed the Holley street avenger carb on the stock OEM manifold, this requires the addition of an adapter to fit the square bore holley to the spread bore mani.
A few things had to be adapted to the holley, cause a tang on the uni throttle lever intended for a trans kickdown had to be snipped off because it was catching on the exhaust crossover, the rest of the install was pretty straight forward, and I used a low profile 2" Air Cleaner, unfortunately the adapter raises the carb an inch which makes clearing the hatch tricky, I had to raise the hatch with inch spacers of 1x2 sourced from home depot for .79 cents. This is just a temp solution until I work out something more permanent.
The adapter can be sourced at just about any auto store for $25 bux. and the whole innstall took a couple hours due to a number of trips back to autozone to source more parts.
well after everything was buttoned up and I tuned the carb to a nice 21" vac at idle, I took the coach for a spin, and all I can say is "Woah"! what a difference a little bit of carb makes, the coach quite simply hauls ass! it can keep up with the GF's 01 Yukon under normal acceleration, and I can actually peel out just by stomping the gas to the floor! the old car would bog and the rig would have no power, now it feels like a new engine has been installed!
on a side note I will need a heaver spring in the vac secondary because they open with little effort and I can hear when they come on, as the rediculous amount of air being sucked in sounds like a mini tornado under the engine hatch.
over all im very pleased with this mod, though I have no idea how it will effect my fuel economy ... lol fuel economy.... hahaha
we shall see  I will try to get some pix of the setup later...
Shan
73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
[Updated on: Sun, 25 October 2009 16:39] Report message to a moderator |
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