Are these ferio spark plugs original?

Brent 1984 with a 1986 2.8 transplant in it isn't running the greatest are these spark plugs original or close to it there stuck there rusty and theres no room will Grady and Brent get these out will this ferio ever run right again will Grady ever get back to his 66 mustang project find out in a different episode on the last one and this episode or another one for the others