what my mechanic said...

[tonyk72]

Thanks for the tips Redman. I tried the oil & fire trick...the oil didn't burn at all. The carb shop just called back and said they found nothing wrong with the carb...I was hoping that they would have found SOMETHING wrong. If I bolt it back on and the same sh*t happens I'm gonna get a new carb...I'lll look at the Holley in my spare time...right now I want to drive the car!

 

[tonyk72]

where did the smoke go?

Carb is back on, the fuel pumping out of the secondary air tube was due to a poorly adjusted seat/needle allowing the float to go too high. This shows how clueless I am...When I checked it earlier & put it back, I thought I put it back the right way...
Anyway...the car smoked a little when I started it up, the same color as before...then it went away after about 2 minutes.
The only thing I did was torque down the intake manifold bolts before I put the carb back on. The were tight, but not torqued to spec (30 ft. lbs). I drove the car around a few miles, no smoke at all. And the 'vette runs VERY well. No hesitation or stumble at all..
I'll drive it a few more miles before I start jumping for joy...
I think I will also dump the QS oil and change over to Castrol, just in case some fuel is mixed in with the oil.
Over the weekend I pull the plugs, clean them up...I'll check them again after a few miles.
The only thing left with this whole saga is the fuel smell after I park it.

 

[tonyk72]

I started the other thread because I tought I had another unrelated carb problem. I'll have to put an end to that one...As it turns out, it looks like it was all carb related...I also had another thread a while ago where I though my problem was due to heat soak...maybe it was a contribuing factor?
As for the bluish smoke coming from the exhaust, most have said it was oil burning...not carb realted...but it's strange that it has now stopped. The smoke would have been black if there was too much fuel being dumped...right? But the fact that the sparks were black & sooty pointed to a rich fuel mix... :confused
The seat/needle adjustment looks like it has to be VERY precise, because I thought I had it right when the carb was pumping fuel out the secondary air vent..
I'm still learning...

 

[Redmanf1]

Do you know how to check the float level while the car is running, that is how they need to be adjusted. Did you check your ported vacuum for the disturber? The one you are looking for has no vacuum at idle and then when you accelerate increases vacuum. You might also take a vacuum pump hook it to the disturber and make sure it changes the advance. Just something to check while you are under the hood. I would also put a can of restore in with your oil change.