- BIG 750cfm airflow - 55% more than regular 97s
- Signature 97 outside shape - No change!
- New power valve circuits improve fuel conditioning
- New 'early plenum effect' boosts top end power
- Ported distributor vacuum adds mid range torque
- Runs out of the box. Pre-jetted for typical SBC/SBF
- Progressive linkages available with cable throttle and kickdown options
- Classic 3-into-1 fuel line available for SBC
MORE DETAILS The All-New BIG97 Tri-Power.
On the outside, it’s Genuine
97 all the way. But on the inside, we’re talking the ultimate 750cfm
hot rod Tri-Power, with new improved fuel circuits, ported distributor
vacuum and a whole lot more. Add our progressive linkage and classic
3-into-1 fuel lines and you’re looking at old school carburetion with
next level performance and drivability.
The pre-packed Tri-Power
comes at special pricing compared with buying separate carbs. Add our
Small Block Chevy linkage and fuel line and you can save even more! 55% more airflow
make 55% more airflow than regular 97s - 750cfm for the Tri-Power,
making it the perfect bolt-on for your small block Chevy or Ford. Cruise
economically on the center Primary, then punch in the Secondaries when
you step on the gas. New power valve circuits improve fuel conditioning
top end enrichment directly into the emulsion tubes, the BIG97 Primary
significantly improves fuel conditioning for more top end HP on less
fuel. New 'early plenum effect' boosts top end power
three carbs allowing all cylinders to draw from both barrels giving you
dual-plane drivability with a single-plane style top end horsepower. Ported distributor vacuum
in the brass plug (supplied) and connect your distributor to improve
combustion efficiency in cruising mode. You'll run smoother and cooler,
with more torque and better fuel mileage. BIG S-jet twin-ball inlet valve
accepts big diameter 5/16in hard line (regular 97s take only 1/4in
line). BIG style Ford nut compression firings are available, and all our
regular Stromberg fuel fittings - hose ends and banjos - all fit. All Genuine 97!
that makes the Genuine Stromberg 97 so popular is built into the
all-new BIG97 Tri-Power. From the cast iron base to the reinforced air
horn casting and everything in between. Note: As with regular new 97s,
original hand throttle parts are not included.Choose your finish
BIG97 Tri-Power is also available in Chrome, Black & Chrome and
Barn Find – all from stock, with cable choke and LZ-style
‘push-throttle’ options available to special order. Click the other tabs
(above) to read more. Runs out of the box
come ready to run, with a wide range of jets and power valves available
for special tuning to suit your individual application. Every BIG97
comes with full installation instructions and you can find more help on
our Tech Center. Add a Chevy linkage - save over $50!
9246PRO progressive linkage combines clean, traditional looks with
maximum leverage. It comes pre-assembled and installs in just two simple
steps, without the need for extended throttle shafts. Every kit comes
with two ‘Snapback’ throttle return springs, which wrap around the end
of the throttle shaft and virtually disappear from view. The swivels are
positively fixed by a small e-clip, and the black set-screws have
knurled ends for a strong fix. Add a fuel line too - save over $80!
classic 3-into-1 fuel line (Big Bore 5/16in OD) for Small Block Chevy
(5-1/2in carb spacing to fit Offenhauser and Edelbrock SBC intakes)
combines super-clean looks with simple TwoStep installation. Each kit is
supplied with special 5/16in Ford Nut compression fittings and CNC-bent
304 stainless lines with leak-free, 'invisible' furnace brazed joints.
The round-bar fuel block sits down close to the manifold, matching the 4
degree Chevy intake angle to align visually with the valve covers. And
for maximum versatility, it has 1/4NPT threads at both ends and a wide
range of complementary fittings is available for your fuel line or
NOTE: All BIG97 Tri-Powers are priced lower than buying
the carburetors separately. Our linkage and full line offers are
available only on BIG97 Tri-Power in regular OE finish.
These carburetors are not designed to meet any emission requirements for
1968 and later applications. Therefore, they should be used only for
competition/off road vehicles or vehicles not required to comply with
late model exhaust emission standards.