HOLLEY, QFT 850 HP DOUBLE PUMPER, ALL ALUMINUM, STREET, STRIP, HEAVY-DUTY BASE for Sale


When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Price: $579.00

Here we have an allBRAND NEWHP style, QFT 850 squarebore (4150),4 barrel, double pumper (mechanical secondary)carburetorprofessionallyset up for street andstrip use.This is one of my custom builds consisting of a new Quick Fuel Technologyaluminum, contoured, HP style main body for maximumflow and enhanced booster signal.It is dyno-provento 600 horsepower depending on your engine setup. This isNOT the cheap Chinese knock-offjunk sold under the brand name "Pro Comp". These parts are machined in Bowling Green, Kentucky and are first quality.

Please call the number below with any questions or concerns regarding your application, and available options and pricing. I can set this carburetor up to work best with your combo. I usually have two or more in stock, just email or call 7two4, 523, two947 for availability.

It has been assembled withhigh-flow .110" needle & seat assemblies,30ccpumps,#31 squirterswithpink #330racing pumpcams, non-stick bowl and block gaskets, nylon bowl screw gaskets, and vent baffle.The jetting is 74 up front with a 4.5" Hg high-flow power valve,and82 in the rear with the power valve circuit blocked. Themounting gasketsare included asshown.

Here's alist offeatures;

Holley polished lightweightaluminum main body with screw-in air bleeds. .072" idle and .030" high speed bleeds installed.

Cast aluminummetering blocks that are custom calibrated for maximum performance.

4 corner idle for fine tuning your idle circuit.

Heavy duty cast aluminum baseplate that is muchstronger than a stock Holley piece.

Teflon coatedthrottle shafts, stainless steel throttle blades, and loctited button-head screws for increasedflow due to decreased turbulence.

Lightweight aluminum racing style Holley fuel bowls with sight windows that will not yellow. No more fumbling with sight plugs!

Aluminum inlet fittings. Uses a standard Holley model 4150,inverted flare fuel line with 5/8"-18 flare nut.

This carburetor weighs just over 7 lbs., while a typical cast zinc carb weighs in at 11 to 13 lbs.

Please email or call me at my shop with any questions, asI will be glad to help youwith your setup. I can be reached at (7 24, 5 two3, 2947) from 9 am 'til 7 pm, eastern standard time for tech or service help.

I welcome all potential bidders to check my feedback. My feedback from carburetor and partssales is 100%, and I've sold hundreds in the past few years. I am the owner/operator of a one-man shop and my carbs are built with pride one at a time.Please see my other auctions for more great deals.

Thanks, Steve


Parts Search:


Follow