OEM versus SR

[unruhjonny]

I am contemplating selling one of my '70 Pontiac Carbs.

I don't want to chance misadvertizing this.

1) I have seen some OEM & SR carter maufactured carbs which use a partial number, and clearly say something akin to "manufactured by Carter for Rochester" on the main casting;
That variation aside, should a latter service replacement carb have a main body, top plate, and base plate with the same casting number as an OEM unit?

2) I have seen several latter replacement carbs which use latter period idle mixture screws (eg: 1968-1970 style versus mid 1970's conical headed types) - can the two safely interchange?

Again, I am asking this so that I can clearly & truthfully represent the carburetor.

Thanks in advance!

[Cliff Ruggles]

Advertise your carburetors by the part number, Plant Code and date.  Carter supplied a lot of units back in the later 60's and early 1970's to help Rochester keep up with production.

Early Carter units thru about 1974 are "softer" castings than the Rochesters, and more likely to need a heli-coil for the inlet, and other thread repairs.....Cliff