so leave the wire strings on for now?, If I take them off, whats going to be the effect??

If I got a better intake manifold, performance one, would my carb work with new manifold?

Ive got a new spring on the way from a corvette parts place in the uk.

cheers

dave

 

Dave,
Leave as is for now. If you remove the wires the primary butterflies will just flop about owing to lack of choke control.

 

Dave -
Remove the bundle of wires that are holding the choke open - it's done so poorly that the choke is not locked in the full open position, and this is part of your problem. Instead, to keep it from flopping around as Paul noted, take a small piece of wire or a plastic wire tie and tie the fast idle cam firmly down to the float bowl casting standoff that the cam rests against when on the full "down" position. This will keep the choke locked in the full open position without being conspicuous.

Your best bet is to find a 1975 - 1980 Chevy passenger car Q-Jet, set it up for your application, and installing an electric choke in it. This is a very versatile setup that is compatible with any intake manifold.

If you want to keep your current carb, you can either lock the choke full open and run with no choke, or you can find an intake manifold that is compatible with a divorced choke coil. You then need to buy the coil and hook up the choke. The carb will still need to be torn down, fixed and set up: If there are this many problems induced by Bubba on the outside, I can assure you that the inside of the carb is a mess as well...

Last option is to obtain an aftermarket manifold, an aftermarket square-bore carb, and do a complete system conversion of the car. I set up one of the guys over in the UK with a system like this as a complete "kit" and mailed it all over. Not cheap, but it makes for a nice setup.

 

Lars,
Nice gesture. As usual you are a jewel in the Corvette world. My pics are from many moons ago when I had a 1979: pre-2003. You may remember I sent you a Carter Q-Jet on your loaner program in those days. These days I drive a 1967 as you probably also know.

If the poster does not go with an electric choke, and wishes to go back to stock intake and choke, the intake heat tubes in my pics are just gathering dust. I can mail them off to him in the UK at my cost. In fact I think that 1979 L-82 intake may still be available. I will have to check if need be.

 

I'm pretty sure I have a couple of rebuildable '78 QJ's that are collecting dust as well

 

Thanks for the info and great offers guys, but I think the best direction would a performance intake and carb.

Lars - what performance intake and carb combo would you recommend??

I was thinking maybe "Edelbrock intake" and a new or rebuilt Q-jet carb, what do you think?

Is this decision going to be affected by my cylinder head, unknown and cams, unknown??

cheers

dave

 

Take advantage of this offer!!!!
Perhaps between Bob and Lars, If Bob has a carb and if Lars will rebuild it for you, as long as you pick up the tab for costs, this is the way to go. You can always put a Edelbrock intake on it if you feel the need to spend additional money. This is basically the route I took and went with a electric choke.
It starts and holds a high idle till it warms up and then off I go!
Try to work with Bob and Lars and see what you can work out.
This is a excellent opportunity for you......Take advantage of it!!!!


p.s. Hey Lars, not to be a pain in the butt or anything, but I'm still waiting on a sticker from the Tuning for Beer Tour in MI in 2006. Can ya help a brother out????
I actually drove my car in the Woodward Dream Cruise this year. It wasn't done as far as the body work goes but it runs great and the interior is in so I'm driving this sucker!!!
Say HI to Donna from me and Janice!
Mark

 

I think we have bigger problems afoot!, there is like a steam/zorst type fumes coming from the rear of the engine, passenger side, around the cylinder head/rocker cover area, a faint smell of petrol is evident, what do we think??

also tested vac today, its sit between 10 - 14 at idle but jumps between 10 - 14 very quickly, so what do we think??

I can hear air hissing around carb area??

It looks all very bad! lol

cheers

dave

 

First of all, by all means, take care of any fuel leaks you may have!!
Then you are going to have to decide which area of this car you want to work on. You jump around alot!
Did you contact Bob Onit about the poss. of obtaining a good used Q-Jet carb, and then ask him if he would be nice enough to send the carb on to Lars so he can repair it and then ship it on to you???
I think that was the offer?

Don't you have any friends over there with any knowledge of mechanics???

 

I looked around the other night.
I have a nice '78 that needs a rebuild. I have no problem with donating it
I also have a few spare spring coils and linkage for a divorced choke setup as well.
If Lars is game I can ship it to him.

 

Thanks again Lars, that was me! I am only 20 miles or so from Dave So I have PM'd him to see if I can help. I am not using the Barry Grant any more since I bought a complete crate engine that came with an Edelbrock, so if I can retreive it I will see if Dave's interested.

Graeme

 

That would be great Graeme!
It looks like Dave has some issues that you should be able to take care of no problem

 

Yeah I will be home in a couple of weeks, we will see if we can hook up then.

 

thanks for the great offers guys, Im overwhelmed, I will hook up with graeme first, see what we can do, cheers again

dave

 

Send me a plane ticket and I'll bring a complete induction system with me and install it for you. You also need to buy the beer.

 

Just spoke with Lars
The only rebuildable core I have that will fit Daves application is a truck core which is not optimum for a Corvette

Dave, I got your emails and am trying to work something out with Lars to get you up and running

If anybody has a '75 to '78 core in decent shape and would like to donate it I'm sure it would make one overseas forum members life much easier!

It only needs to be shipped to Lars in Colorado.
Thanks.

 

I have a few but unfortunately they have already been into!

 

As long as the core is not destroyed to the point where it needs extensive thread tapping maybe Lars would accept it.

 

Thats the problem...He looked at them and said they were junk.