Fuel or spark problem?

Replaced them at 1 3/4 turns out but this did nothing
Your car is not stock anymore.
Therefore you can not tune the way is done for a factory setup.
At best the factory setting are a now a baseline.
Since its not a factory carb, the turns out doesn't mean anything now.

You've confirmed the fuel pump is working.
If you can take the top on that carb easily, you check the fuel level as it sits.
^Take combination square or machinist rule or whatever you've got that wont's be destroyed by fuel and measure the fuel hieght. Compare that with the recommended fuel level in the instructions manual for that carburetor.
^ If not, then you can for now assume the float level is correct, or remove the carb and check it dry. If at some point there is evidence of over filling (fuel coming out of the boosters at idle, or after shut down), then you must adjust the fuel level (float setting).

Remove a couple spark plugs and see what they show.
If they are carbon fouled bad enough, then you know it is too rich at some or all situations.
^ Clean or replace the plugs, regap, reinstall, etc.
^ Check float level
^ check choke settings.
^ Reinstall, start, and with the air cleaner lid off, when the choke is fully open and you've kicked down to base idle, turn the mix screws in until the engine starts to slow down. Then open each up maybe a `1/4 turn. That should be about right in gear.

If turning the mix screws in or out makes no change, something isn't set up correctly. Either there's internal fault (dirt for example) or the throttle is set too far open, or maybe something else.