If it is idling fine with the choke on it sounds like the issue is within the carby, so I wouldn't be going to the trouble of replacing the fuel lines.
Is it needing the choke on to increase the idle speed to keep it running, or because it's starving for fuel at idle.
You have probably had the carby on and off that many times you will wish it was held on with a zip, but given that it had plastic crud in there, I would be "totally"
dismantling it, every jet, screw, etc. and give it a good blow through with compressed air. Ensure the float level is set correctly too. 
If it's had stale fuel sit in it for a long time, that stuff can dry out leaving a varnish like residue and easily block fine ports/galleys. 
Is there anyone close by that might let you try their carby on it?
Then like Gary say's, get the ignition timing set up correctly.
Then...if it's still giving strife remove the ignition module and put the contact breakers back in to eliminate issues and stick to basics.
You can always replace the electronic module once you get it all sorted out.
Good luck.
Cheers, Mick.
				
			 
			
		 
			
				
			
			
				1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014 
1959 S2 88 ARN 111-556 
1988 Perentie 110 FFR ARN 48-728 steering now  KLR PAS!
REMLR 88
1969 BSA Bantam B175
			
			
		 
	
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