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DaVinci Performance Gas Modified Carburetor
This modification is where technology and skill
come together to outperform any other available carburetor.
This carb is designed for good idling, razor sharp
throttle response and increased horsepower. Extensive
modifications are made by the knowledgeable DaVinci crew.
These mods are
then applied to make gains ranging from
5-50 horsepower over all other modifications.
Sanctioning body rules are adhered to. This carb can be
used for drag or
circle track application with big block or small block
engines. It is quality tested on a race engine with float
level and idle preset for out of the box operation. All
parts are coated to a high luster to add reliability.
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Blueprinting/Machining
All circuits modified for correct size and
all passages cleared of casting
obstructions
Metering plate, main body, and baseplate
machined and squared for flatness
All bosses blueprinted (threads, throttle
shaft bores,
and booster pads)
Airflow increased and balanced by blending
and contouring venturis and profiling
shafts
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Calibration
Airbleeds sized to specification. Adjustable
airbleeds installed
when allowed by
rules
Fuel emulsion system
tested and equalized.
All emulsion circuits have been sized and
de-
burred for maximum atomization
and
flow
Squirter system
modified and calibrated to
eliminate bogs, sags, and hesitations
Power valve (enrichment) and main circuits (jets) are calibrated
Custom squirter emulsion system added
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Booster Alignment/Installation
Booster centered within main venturi on
a
close tolerance jig
Booster
secured to reduce hazardous and
power
robbing vibration
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Precision Assembly
Welded linkage, button-head butterfly
screws
Premium non-stick gaskets used throughout
Blueprinted hi-flow needle and seat installed
along with squirters
Extra tall vent tubes installed
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Flow testing and Quality Control
Tested on a Superflow bench for correct
and even
flow
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