what do i do with all the hoses that are on the q-jet?will my car run like **** if i just slap my rpm intake and holly carb on with out messin with the hoses and lines or do i just put it on the holly? im tryin to make my engine clean and have the least emissions and hoses i can possibly have

 

1st, I don't see anything about the Avenger series that justifies their higher price vs. the standard Holley VS carbs. Sure, 70 more CFM, but a 305 isn't going to need it. A 80457S will cost you $140 less - get the quick change secondary spring housing kit & spring assortment for $15 more, you're good to go.

Second, you need a mechanical/vacuum advance distributor to go with it. Then, the only connections you need to make are PCV and the vacuum advance to the timed vacuum port.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. 2-1/2" cat-back, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker 2055 headers, 3" Catco cat & 3" cat-back, Spohn SFCs).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

I agree with five7kid on the Avenger carb. It is not worth the extra cash. If you get a holley get non-Avenger, then you yourself can purchase the metering block (switch out the meteing plate) and the secondary quick change kit.

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383 86 Camaro Z28
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,3.42 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.ALSO SECOND GEN Z28---mods:454 BBC,.546 max lift(doug herbert cam ) 750 Holley vac sec. ,Edelbrock Performer manifold,Holley electric fuel pump,Hooker headers,Flowmaster mufflers,beefed up 700r4 tranny, 3.90 gears, powertrax unit, B&M console shifter.

 

I agree with 5,7 & BB to a point. Yea an 80457S is a great carb "I have 2, I should know" but he SA needs less tinkering for more power. Holley basicly built an 80457S and came up with a SA 670. Did I mention I also have a SA 670? Well I do and it is a great carb. If You know how to build a holley for more power get a 80457S, but if you want the work already done get a 80570.
SSC

 

The Street Avenger does have a 4th port for the power brakes. And, those clear fuel bowl plugs.

But, don't expect it to work "out of the box". Holley hasn't gotten so smart that they can make a carb that works on an infinate combination of engine configurations. The tuning that will have to be done is the same as a universal VS.

If you don't know how to work on them, Ulrich's book is pretty good. For 8 bucks, it'll get you pointed in the right direction.

 

I had to tinker around with mine a bit, mostly on the fast idle and float adjustments. Why did I get a SA 670? I was new to buying Holley carbs so I just wanted one single thing that could bolt on without having to worry about buying other little bits later on. It's been a great carb so far.

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'82 Z28
LG4 305 .030 over, performer intake, holley street avenger 670, xe 256 cam, tes headers, 3 inch single exhaust, spintech muffler, 14 x 3 inch drop base k&n.