vette 62 carter wcfb jet question????
 

hi! i have a 62 vette 327 250hp with a carter WCFB here.
i have primary jets 120 165 and secondary are 120 222
are those the right jets for this carb and are they at the right place??
thanks a lot!!

Didn't recognize those #'s right off, they are the Carter #'s, right ? According to my 1972 parts book the 120 222 is correct for the secondary and the size is .063 Can't find a specific primary jet # but the size should be .086 (I believe this was Chevy part # 1346577).
Actually, I have one of those carbs (wcfb-3191-s) in my cellar, if no one else responds I could look inside it and confirm what came from the factory. Bob

I believe it should be 3090S or 3091S on the tag with a 6-1586 air horn casting number...

The ST-12 lists the WCFB-3191-S for the 250 hp engine.

And shows the following jets & rods:

Metering rod: .069" x .042"

Primary Main Jet: .086"

Secondary Main Jet: .063"

I do not have a cross listing for the 120-165 & 120-222 jet numbers. All later model jets start with 120- either a "3" or "4" such as 120-380 or 120-413. Recommend that you obtain a "Number" drill bit set, and use the shanks (not the drill end), to actually measure the ID of those jets.

Harbor Freight has Number Drill Bit sets for like $10:

http://www.harborfreight.com/cpi/cta...emnumber=34627

Plasticman

Per Coves4me in another carb post (talking about a 62 AFB):

"the secondary jets are number 120-222 (.070")"

Someone needs to actually measure the jets and rods (I do not have any of these), and compare them to the stamped numbers.

Plasticman

Strange....the attachment (which is referred to a lot on the forum) shows 3090S 3091S for the '62 base engine....could another one of those early documentation SNAFUs I guess...

Frank