on my nova gsi (j reg, no cat) i've got a fuel plug with 92 & 95 on it.
i normally use 98 super, would it make make any difference if i fitted a 95 98 plug from another motor and put it on 98?
i'm thinking it should, but do the plugs just make a conection or does the plug have a value or level of resistance?
and are they still avaible from vaux? any idea on cost?