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"ems as tho my carbs are out of tune won’t hold idle with out choke out, " Take the tops off, unscrew the various jets and clean them out with a can of carb cleaner. Shoot cleaner down the holes and drillings where the jets go. The fuel cell may have been replacing a rusty fuel tank, and dirt from that might be blocking the idle jet on one carb now. Hold a carb top up vertically and have the float hanging so the arm just touch the needle and seat valve, and measure the gap float to top with verniers. Compare the two carbs, the gap should be 11mm from memory. That gap determines your fuel level in the carb, which also determines the leaness. Another one is the gasket between the carb and the manifold, a difficult choice. Some get bolted up tight, other theories reckon they must float so the engine vibrations don't disturb the fuel. See if they are rigid now. Then take the carbs off and inspect the O-rings or the gaskets to the manifold. Any leak in there will run a carb lean. Then back the junction screw off that joins the carbs so they are independent at idle and see if each one makes a distinct clean 'click' when you let its throttle drop 5mm. If the idle stop screw is not set correctly it will not have a clean click, or if the throttle shaft is bent so one of the two plates hits first. Check each carb then run it so you can play with each to see which one is lazy. Take a length of hose and listen to each of the 4 throats, they should each make a clean distinct 'thop' sound at idle. The quiet or fuzzy ones need their idle mixture screw adjusted. get each pair sounding as similar as possible. Then set the idle speed screw on each carb to make the carbs sound the same. Then set the balance screw joining the carbs so they open the same from that idle point. There, you've set them up! Of course the jets may not be ideal, but you need the car running as best you can before driving it and doing 'plug cuts' to compare the 4 plugs and see if the same fuel is getting delivered to each throat and if the mixture is correct right through the range. A mixture display and an oxy sensor is the modern way to do this, with an oxy sensor port in each exhaust branch... The trouble is, you spend that money and once you have the right jets in the carbs you never need the gear again. There're books written on how to tune twin carbs, this is just a quick reply...