Carb 101

[Guest]

OK- I have a '64 with 289 V8 and an AFB intake manifold. I have a new Edlebrock 500 cfm Performer carb. There are two brass(?) lines that stub out of the right side of the intake manifold. So they represent some sort of air circuit. Vacum I guess. Do I run rubber tubes from these to somewhere on the carb? And what does this air circuit do for you?

Thanks for your help - Leon

[59r2]

The two line in the manifold are the heater for the choke .How are you choking the car ? Manual with a cable to the dash, electric, which might be included with the carb or with a line from the skinner of the two to choke pot(use steel) and the other to the air cleaner(use rubber). If you decide not to use a choke at all wire the choke butterfly open and it will take a little feathering of the gas pedal to keep it running till warm.(not recomended for cold weather touring).Joe

1959 HARDTOP R2 clone
1960 conv
SDC member since 1972

[Guest]

Ah, I see, said the blind man. The choke is electric. I'll plug off those two lines.

[DEEPNHOCK]

Here's the best first step for you.
Hope the info helps.
Jeff[8D]

http://www.edelbrock.com/automotive_new/mc/carbs_acc/pdf/carb_owners_manual.pdf

quote:Originally posted by Leon

OK- I have a '64 with 289 V8 and an AFB intake manifold. I have a new Edlebrock 500 cfm Performer carb. There are two brass(?) lines that stub out of the right side of the intake manifold. So they represent some sort of air circuit. Vacum I guess. Do I run rubber tubes from these to somewhere on the carb? And what does this air circuit do for you?
Thanks for your help - Leon

[64V-K7]

There's a possibility that your manifold choke stove pipe may protrude high enough to contact the bottom of the linkage on the carb. This contact point is very subtle and could prevent you from tightening the carb enough, resulting in a vacuum leak. This happened on my car, even after installing spacer gaskets to raise the carb to alleviate the issue on the drivers side..

Bob Johnstone