This is how you access the Adjustable Part-Throttle setting after the carburetor is assembled.
According to JET, this carburetor is intended for racing purposes only. For this reason, the Stage 3 carburetor might exhibit a rich condition at idle and low speeds, due to the calibrations made to operate properly under high-RPM racing conditions.
Stage-3 Typical Application:
- 355 to 406ci engines
- Compression ratio 11.0:1 to 12.5:1
- Cast-iron intake, ported cast-iron heads
- 1 3/4-inch headers or ported ram horn manifolds
- Camshaft requirements: Minimum 240 degrees and maximum 250 degrees duration at .050-inch lift, .510 to .540-inch lobe lift, Lobe Separation Angle (LSA) of 106 to 110 degrees.
Once the carburetor is assembled, it’s hard to distinguish between an OE and a race-prepped unit – unless you know what to look for.
Whether you are looking for a carburetor rebuild for your small- or big-block, race or street engine,
JET Performance has established itself as the go-to guys if you want a carburetor rebuild that is tuned to your application. If your engine has been modified, they can calibrate or modify the carburetor to meet your needs, whether it’s for street, strip, racing in circles, or even marine use. Basically, if your Quadrajet is in need of a rebuild or performance modifications, give them a call and see what they can do for you.