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Forum: 68-69 GTO Tempest & LeMans TECH 10-10-2023, 10:15 PM
Replies: 1
Views: 454
Posted By 69400
69 carb upper idle bleed screw

So when adjusting the upper air bleed screw do I open it until I see max vacuum or do I seat the upper idle air bleed screw, and do it by the mixture screws instead. Currently it's seated and I have...
Forum: 68-69 GTO Tempest & LeMans TECH 09-20-2023, 03:21 PM
Replies: 10
Views: 1,020
Posted By 69400
@kenth I have no pictures but the air horn looks...

@kenth I have no pictures but the air horn looks like any other '69-70 with the primary POE and the 4 brass tubes under it, as well as the idle vent valve on the front. The body has the "updated"...
Forum: 68-69 GTO Tempest & LeMans TECH 09-19-2023, 05:16 PM
Replies: 10
Views: 1,020
Posted By 69400
Thanks guys, was trying to find a good baseline...

Thanks guys, was trying to find a good baseline Since it's going on a mild cammed (Crower 60242) YS code 400.

Idle system was modified but the air bleeds weren't. Opened it up and had .038 idle...
Forum: 68-69 GTO Tempest & LeMans TECH 09-19-2023, 03:40 PM
Replies: 10
Views: 1,020
Posted By 69400
It is indeed a quadrajet, but with a Carter part...

It is indeed a quadrajet, but with a Carter part # because Carter made aftermarket service replacements using their numbers. Application for a 69 428, big car.
Forum: 68-69 GTO Tempest & LeMans TECH 09-18-2023, 01:08 AM
Replies: 10
Views: 1,020
Posted By 69400
Carter 4852S service replacement

I was wondering if anyone knows the original calibration of this carburetor (jets, rods, main air bleeds, etc). Only info I have is that it's a 7029262 replacement.
Just bought it off eBay it looks...
Showing results 1 to 5 of 5

 
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