Correct plugs for electronic ign.? 273 auto

a massive thank you guys, I have plenty to do this weekend now (gets me out of painting the house!)
@ 73, thanks for the diagram, i have no instructions etc for ignition system currently fitted so anything helps.
@ Chewy (i hope thats star wars related?) i pray its not as bad as that :/ and i will check the above.
@ Bill, would a knackered old fuel pump, say 46 years old cause that? maybe upgrade to electric fuel pump.... can get a 3bar pump, that should sort pressure problem.