Hello everybody. First ever post here, so I hope it works out well... Anyways, I have an aftermarket Carter carb (625cfm) on a basically stock 350. I have been looking for any resources on tuning a carter/edelbrock. Already have the strip kit. Oh yeah, the main reason that I am wondering how to go about it is that my car seems to stumble just off idle (anywhere from 1000-2000rpm, depending on conditions). Any ideas? Thanks

Mike

 

Try Edelbrock's Performer series carb manual for a guideline. It should be similar, but you won't be able to use any of their charts.
http://www.edelbrock.com/automotive/eps_intro.html

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1984 Silver Z28, 383 cid 4 bolt, ARP Fasteners, 2 1/2" Cowl Induction Hood, 600 cfm Performer Carburetor, Torker II Intake, Performer RPM Heads, XE268H Cam, Magnum Roller Tip Rockers, MSD6A Ignition, Blaster2 Coil, HEI Distributor w/ Adjustable Advance, 700R4, TransGo SK, 2.73:1 Limited Slip Dana 44, Terminator Headers, Custom 3" TIG Welded Stainless Exhaust, Flowmaster Muffler, 4 Wheel Disc Brakes, Oil Cooler

 

Yeah, I found that page, but was hoping to find someplace with charts that I could use. All the edelbrocks have different part numbers, and different cfm ratings for that matter. Thanks though. I guess i'll just try basing it on the 600cfm edelbrock.

 

i have a book from carter on how to tune a AFB, if only i could post all of the info, but i dont feel like typing 33 pages of stuff, what specificaly are you looking for, and i will tri to help you out

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when the green flag drops the bull$hit stops

350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast

 

does this stumble occur on throttle tip in? like when you nail the gas is it stumbling?

it could be your pump shot, which hole do you have the pump shot arm on?

 

Also, make sure your distibutor is working correctly. I had a leaky vacuum advance cannister which would cause a sudden vacuum leak just off idle with a resultant stumble.
It sounds like it may be your carb since it varies with conditions, but i wanted to give a 'heads up' on the dist.