I finally started my reconditioned 350. It ran like crap on start up, was idling at 2000-3000 RPM
I spent a couple hours a day for a week trying to figure out what was going on. Doh!!!!
see if you can find the problem.

 

Did you check your choke hi idle adjustment on the passenger side of the carb?

 

Yes, waiting on my How to rebuild & Modify Quadrajet Carburetors but once i found and fixed the leak it is running Good now
still need to dial it in though but it is night and day in how it is running

 

If you can't dazzle them with knowledge baffle them with bull s**t Thought it was brilliance

 

Coil condensor wire?

 

That's a suppressor for the radio to eliminate static.

 

Ended up removing the suppressor because I replaced the Points with a Pertronix 1181LS unit and because the air cleaner was hitting it

 

The Problem was Definitely a Vacuum Leak "A HUGE VACUUM LEAK"
I cant figure out how to attache a video or I would have a before and after so you could see and hear it.

 

Once I figured out what I did wrong it was one of those Hand Slap Forehead moments

 

I assume it isn't the fact that the PCV isn't hooked up. That would be too obvious

 

Nope,The PCV Hose is running from the Carb to the Valve in the picture

 

Think Manifold Vacuum

 

Sorry, the crankcase breather was what I was referring to. On my 68 it's on the passenger side

 

I thought that what you meant but no it is wasn't that

 

You can see the problem in this picture also

 

Yep, that would do it. How can it take a week to find that.

 

Yeah, I see it too now. Did you install that? I'd hope someone you're paying to put your engine together wouldn't do it

 

Yes , Yes I did The Carb has been sitting on the Manifold for about 4 years waiting for me to get to the point of installing it .
It sure looked good though

 

I gotta say I had to go to the glasses to find it . At least it was an easy fix

 

There is nothing wrong with showing all of us..... (WHATS WRONG WITH THIS PICTURE?) It makes us all better mechanics demonstrating that any of us can make a mistake when our minds are two steps ahead of what we are doing at the present........Like installing a carb. Proof that its the little things that make big problems down the road.
YEP GUILTY AS HELL

Glad you caught it and fixed it.

 

I pointed out the accelerator linkage mounting plate in another thread. Sorry I missed it in this one, I thought it was the loose manifold bolt.
Your not the first
https://classicoldsmobile.com/forums...-350-a-139360/

 

Yep Glasses,an assembly Manual, Service Manual and a lot of time searching on CO to find out what was going on
I even tightened the Carb Bolts and only saw it when I was playing with the throttle and it was backfiring and spitting fuel
I stepped back and while looking at the carb i said to myself " wait the Carb Gasket doesn't have a relief for the throttle bracket"
I pulled the Carb off and put the Bracket on over the Carb.
I started it back up and it ran almost perfect.
I cant tell you how many times I pulled the Distributor and reset TDC, adjusted it a Tooth forward and then back thinking it was a timing issue.
A real learning experience.
This is the first engine I have completely taken apart and put back together with all new Bearings and gaskets and it actual runs,the only thing I sent out for work were the Heads. The Carb was rebuilt when I purchased it . Car was originally a 2bbl.