Page 385 - 2021-22 Auto Performance_Hot Rod and Early Muscle
P. 385
Hot Rod Series Carburetors Hot Rod Series die-cast
aluminum bodied 4-barrel
carburetors combine excep-
tional performance with show-
winning appearance. Carbure-
tors are offered in choice of
mechanical or vacuum secondary
design and feature electric chokes,
built-in sight glasses, dual metering
- vides a long-lasting shine.
Super Street Carburetors
high- performance street or
-
per Street carburetors have
been developed using years
of successful race track experi-
ence. Carbs combine billet metering
blocks, billet throttle body, all-aluminum Proform main body, and dual inlet aluminum fuel bowls. Changeable air bleeds, tuneable secondary opening rate, and power valve channel restrictions allow exceptional tuneability. Offered in vacuum and mechanical secondary versions with conventional or annular boosters.
Part No.
Vacuum Secondary Models
Description
QFTHR-580-VS QFTHR-680-VS QFTHR-780-VS
580 CFM, 1.312" Venturi, 1-9/16" Throttle Bore 680 CFM, 1.312" Venturi, 1-11/16" Throttle Bore 780 CFM, 1.375" Venturi, 1-11/16" Throttle Bore
Description
Mechanical Secondaries Part No.
Mechanical Secondaries/ Annular Part No.
Vacuum Secondaries Part No.
E85 Part No.
Mechanical Secondary Models
650 CFM 680 CFM 735 CFM 750 CFM 780 CFM 830 CFM
QFTSS-650 QFTSS-650-AN — — — — QFTSS-680-VS — — — QFTSS-735-VS —
QFTSS-750 QFTSS-750-AN — — — — QFTSS-780-VS — QFTSS-830 — — —
QFTHR-600 QFTHR-650 QFTHR-750
600 CFM, 1.312" Venturi, 1-9/16" Throttle Bore 650 CFM, 1.312" Venturi, 1-11/16" Throttle Bore 750 CFM, 1.375" Venturi, 1-11/16" Throttle Bore
Black Diamond SS-Series Carburetors Five pounds lighter than
other carburetors, the Black
Diamond SS-Series carbure-
tors feature a unique, satin
black PTFE coating that actu-
ally reduces fuel temperature
and resists impact and scratch-
es. The billet throttle bodies with
blocks with changeable idle feed, power valve restric- tors, and idle and high-speed air bleeds provide ultimate tuning. Other standard features include a 4-corner
window. Mechanical secondary carburetors have dual- inlets, dual-sight glasses, and 4500-style fuel bowls.
Part No. Description
Mechanical Secondary Models
Street Q-Series Carburetors Lightweight die-cast alumi-
num components. Changeable
idle and high-speed air bleeds.
Vacuum & mechanical secondary
models. 2-circuit metering - 4-Cor-
ner idle system. Downleg boosters.
- ets for Chrysler vehicles.
Part No.
QFTSQ-650 QFTSQ-750 QFTSQ-850 QFTSQ-950
Description
650 CFM 750 CFM 850 CFM 950 CFM
QFTBD-650 QFTBD-750 QFTBD-850
600 CFM, Electric Choke, 4-Barrel 750 CFM, Electric Choke, 4-Barrel 850 CFM Electric Choke, 4-Barrel
Fuel Pressure Regulator QFT30-803
Capable of satisfying the fuel supply
needs of single four-barrel applications
with up to 900 horsepower. Regulator
features ball-and-stem activation and incor-
porates a high quality, GFLT diaphragm assembly for
Slayer Series Carburetors The Slayer Series offers af-
fordable aluminum carburetors
for performance enthusiasts
on a tight budget. Features
include changeable idle air and
high- speed bleeds, built-in
3-stage emulsion circuits in the primary metering block, and changeable primary idle feed restrictions and power valve channel restrictions. Both the 600 and 750 one-wire electric chokes.
Vacuum Secondary Models
QFTBD-680-VS 680 CFM, Electric Choke, 4-Barrel QFTBD-780-VS 780 CFM, Electric Choke, 4-Barrel
Black Diamond Q-Series Carburetors Extremely tunable, Q-
Series carburetors have
4-corner idle systems, sec-
The Black Diamond's satin
black PTFE coating reduces
fuel temperature 6% and resists
impact, scratches, and underhood
chemicals. The Q-series also features
Proform main bodies, downleg boosters, screw-in idle and high-speed air bleeds, accelerator pump discharge nozzles, and blended venturii areas.
Part No.
QFTBDQ-750 QFTBDQ-850 QFTBDQ-950
Description
750 CFM, Mechanical Secondary, 4-Barrel 850 CFM, Mechanical Secondary, 4-Barrel 950 CFM, Mechanical Secondary, 4-Barrel
Part No.
QFTSL-600-VS QFTSL-750-VS
Description
600CFM, 1.312" Venturi, 1-9/16" Throttle Bore 750CFM, 1.375" Venturi, 1-11/16" Throttle Bore
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