[Ggmac]

Nice car . Its a lot to go over . Possible wrong fuel cap , blocked exhaust , crap in the gas tank , loosing fuel volume or pressure, coil , etc . Lets start , your fuel filter doesn’t catch enough , the fuel pressure regulator has been known to not be precise. Have you actually checked the fuel pressure with a gauge ?
When you say miss , are there any circumstances where it doesnt miss ? Does it ever stall and not restart until cool ?
What temp does it run at ? Are the spark plugs wires on tightly, a good check is to open the hood and run the car at night with no flashlight and look at the motor , look for spark .
Are there any noises , hiss from the exhaust? If you remove and reinstall the gas cap doe it make any noise or difference in its running ?
Any white smoke out ofthe exhaust ? Have you retorqued the cyl heads ? Should do 3 hot - cold cycles retorquing after normal running temp , let cool then retorque . Do this 3 times .
Check plugs for water . Any loss of radiator coolant ?
Is it still 6 volt pos earth ? I see the unilite and coil but I dont know if the coil is 6 volt ? Could be any .