How would this 750 edelbrock work?

[Harlow]

I've got access to a 750 Edelbrock, model number 1407. How would it work on my 383?

Engine spec:
.030 over
292 .510 cam
Edelbrock performer intake
Headers

[Harlow]

I've got access to a 750 Edelbrock, model number 1407. How would it work on my 383 Auto?

Engine spec:
.030 over
292 .510 cam
Edelbrock performer intake
Headers

[PA Dodger]

I have a similar buildup as you mentioned. 383- .030 over, Torker intake, .528 lift cam, headers,ported heads etc....  The carb works great right out of the box. I had lots of headaches trying to get a Holley to  run right.  The only problem I am experiencing with the carb is I run real rich at idle, which I think is because of the looonnggg cam duration. I think this would happen with any carb though.  Other than that the car runs like a raped ape... 
Dan

[Ghoste]

I had one on my 383 and I was more than happy with it.  I only took it off because I scored a nearly new Holley for nothing and with them having so much more tunability, well, I couldn't really turn it down.  The Eddys are a clone of the Carter AFB and make a great street carb.

[Harlow]

I have a similar buildup as you mentioned. 383- .030 over, Torker intake, .528 lift cam, headers,ported heads etc....  The carb works great right out of the box. I had lots of headaches trying to get a Holley to  run right.  The only problem I am experiencing with the carb is I run real rich at idle, which I think is because of the looonnggg cam duration. I think this would happen with any carb though.  Other than that the car runs like a raped ape... 
Dan

I've had the same trouble with the Holley 3310 I have. I'm glad to hear that you like yours. I went ahead and ordered it today at a local speed shop. Should be here tomorrow morning. Hopefully I have the same success you did with yours.

[Harlow]

Alright. I went and picked the carb up this morning. When I went to mount it, I noticed that the intake (where the carb mounts) is not a square bore and the carb is a square bore. Do I need an adapter plate?

[Harlow]

Well guys I got the carb hooked up/tuned and took it for a quick spin. It'll break the tires loose from a dead stop but I'm giving it full throttle and only laying about a 6-7 foot patch. I think it should have a lot more power than this. PA Dodger, you mentioned you have a very similar set up to mine. Did you have to make any changes to the carb, like a weaker step up spring? I'm only pulling about 5" hg and idle (650 rpms).   

[PA Dodger]

Scott, I do have the "strip kit" with all the different springs and rods. I have swapped them here and there to see if they would make a difference. I pretty much ended back at stock . I am pulling more vaccuum than you are though,so you may benefit from a lighter spring for the carb. The only real change I made was drilling small holes in the primary throttle blades to enable me to back off the throttle screw. I mentioned in the PM I sent you how important the 10" convertor was for my setup. This, along with some decent gears in the rear will help you smoke 'em if you want.
Dan

[Harlow]

Rear end is something I had forgotten about. I've got a 3.23 open (means non-sure grip, right?) rear end. That will probably hinder my burnout capability. I'm going to try and raise my idle speed, by messing with the idle mix so that I raise my vacuum. It seems like I'm running pretty rich. Probably because I'm pulling gas from the main circuit at idle. I'll mess around and see what I can make happen. I'm pretty happy with the results. A week ago today I would bog down and die when I gave it any throttle. I'm also going to check out my total timing. I hear that the rebuilt stock distributors have WAY too much mechanical advance, I'm going to get a digital read out timing light and see where I'm at. Thanks for all the help.