Jetting a Rochester Quadrajet
I wanted some advice in order to jet my rochester.
Im rebuilding my 65 GTO in France, so when i order parts i prefer not mistake.
My motor is stock 400ci YS except from 0.060inch + piston size.
My carb is a R4-M4MC
The jets are 97.
Primary metering rods 48K
From what info i sourced something between 70-76 jet size could be a good start.
I know its difficult to guess it, but perhaps someone could put me on the way.... Of jet size or tips on the metering rods size.
I called butler and some parts dealer and couldnt find any info. Even on the website not much info on jet size.
Of course carb is rebuild and everything is in good shape.
Hope someone could giuve some good advice