1. Home
  2. Carburetor Parts
  3. by Carb Types
  4. Rochester
  5. 2G, 2GC, 2GV, 2 Jet 2 Barrel
  6. Rochester Main Jet Custom Assortment
Rochester Main Jet Custom Assortment
Rochester Main Jet Custom Assortment

Rochester Main Jet Custom Assortment

3 Review(s)
Your Price: $55.00
Rochester Jet
Part Number: 120-10A
Availability: In Stock

Choose Options

Write a Review
Price includes 8 pairs of jets (16 total). 

Rochester B, BC, BV, H 1 barrel carburetor main jets. Also fits 2G, 2GC, 2GV, 2 barrel carburetors. Jet sizes are usually stamped on the top of the jet, or use a drill bit to determine your existing size.

Includes 16 jets total, you'll receive 2 jets in each size selected. Please be sure to select 8 different sizes.

Rochester B, BC, BV Jet Size Specifications
Rochester 2G, 2GC, 2GV Jet Size Specifications

Jet Testing

To determine if you have the correct jets in your carburetor, operate your vehicle for 20 minutes at sustained speeds.  Stop and pull a plug. Gray - Good, Black - move down one jet size, White - move up one jet size. Do it all over again until you get a gray plug.

This assumes your engine and electrical system is in good running order.

Related Items

Item In Cart Rochester 2 Jet 4 Jet Power Piston Assembly - 85-800
In Stock
1955-73 Buick, Chevy, Pontiac, Olds
Part Number 85-800
Item In Cart Fast Idle Cam Screw - 75-22
In Stock
12-28 Threads
Part Number 75-22
Item In Cart Rochester 2 Barrel Vacuum Link
In Stock
Part Number R125
Item In Cart Pump Discharge T and Spring
In Stock
Part Number 85-18B

Recently Viewed Items

Can't find what you need? Contact Us