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Lean at idle and cruise.

That gasket is for an 850. Will not work for a 750.

I’m glad to see the AFR that steady with the carter. A .003 -.004 jet change should put it right where it needs to be. Do you have any metering rods to tune with? I’ll be glad to send a couple different sets down.

7* is late. This fuel needs more lead than that. Fire it up, let it heat cycle twice.(t-stat opening) that way you know everything thing is where it is going to be. Then start advancing your timing. Noice the idle start to smooth and the rpm raise. That is more complete combustion. At 7* you are...

With the throttle closed, pull on the top of the acc pump and see if it will raise further. You may just have to shorten your rod to get a better pump shot. Where is your timing now?

You have a perfectly good Thermoquad. Leave it on there and fix your ignition problems. If you need me to tune it back in from all the adjustments that you tried to make, I will.

All of those I’ve done have needed recalibrated. Some are really lean and the rest are ultra lean. The ONLY carburetors that are hopeless are ones pitted and corroded so badly that they physically cannot be repaired. Yours definitely does not fall into that category.

Usually the idle air bleeds are about 3 times too large.

No sir, not my site. I haven’t heard of them either. Edelbrock molds were sold to Weber then magnetti-morelli. Same AFB carb as when Carter did the manufacture.

Are you saying that you ordered one from me?

By nature solids are going to make more noise than hyd. First note your vacuum at the .012 cold setting. Note it with engine cold and engine hot. Then readjust to .024 cold and note the vacuum hot and cold. If you see an improvement then you can play with tighter settings especially on the...

What happen here???????

I think that the .015 that your card uses is on the tight side to begin with.

Let’s discuss your method of valve adjustment.?

I’ve never seen a TQ with those brass Idle mixture screws from the factory. Factory are steel, so they aren’t able to develop that ring from over tightening. Both brass and steel will distort the baseplate. Get rid of the top screw in your photo. Don’t be cheap by putting them in a little drawer...

Sounds good

Where does 38 total put your timing at idle?

Yes, those look factory to me.

TQ idle mixture Screws get unresponsive when there is no more fuel to give. You are on the right track with your tree all the way up also another indication of a lean carburetor. Idle circuit and most likely primary circuit as well. Look down in the choke horn towards the front of the car. And...

^^^^this^^^