Stromberg Big 97 Secondar Carb Plain 250Cfm 9510A-BIG-S
(Prior to Dispatch)
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The BIG97 Secondarycarburetor is designed ONLY tobe used in multiple carburetorsystems, connected to a BIG97Primary with a progressivelinkage. BIG97 Secondarieshave no power valve oraccelerator pump circuits, butkeep chokes, idle andtransition circuits for steadyidle and good low throttlemanners. Dummy acceleratorpumps retain the classic 97look.
55% moreairflow
BIG97smove up to a 1.175in venturiwith super-efficient 20 degreeentry angles. And flared exitcones build power by slowingthe mixture down to reduceturbulence into the manifoldplenum. The result? 250cfm percarburetor.
New'early plenum effect' booststop end power
Allowing all cylinders todraw from both barrels givesyou dual-plane drivabilitywith a single-plane style topendhorsepower.
BIGS-jet twin-ball inletvalve
Acceptsbig diameter 5/16in hard line(regular 97s take only 1/4inline), plus regular Strombergfuelfittings.
AllGenuine 97!
Everything that makes theGenuine Stromberg 97 sopopular is built into theall-new BIG97. From the castiron base to the reinforcedair horn casting andeverything inbetween.
Runsout of the box
BIG97s come ready to runwith the following jetting(see below). As with anycarburetor, rejetting may berequired for otherapplications, high altitude,local gas, ethanol content andmore. A wide range of jets andpower valves isavailable.
BIG97Secondary jetting:
Main jets 0.061in NoPower valve. No Acceleratorpump valve
- AllGenuine 97 on theoutside
- Totally new onthe inside
- BIG 250cfmairflow - 55% more than aregular 97
- Newearly plenum effectboosts top endpower
- BIG S-jetsaccept 5/16in hardline
- Runs out of thebox.
- Use ONLY inmultiple carb systems,connected to a Primary with aprogressive linkage