'63 Sport Fury ragtopDougWhat say you ??Street use.Has Champ RJ14YC plugs in it now, but wondering with the available gas these days if a hotter range might be better??It's a '68 383 out of a Road Runner. It has a purple shaft cam, (284/484 ??) and dual exhaust, with an Eddelbrock 800 Performer carb. Still on cast iron intake and iron exhaust manifolds. It has a Mopar electronic ignition system with an orange box. Rest of the engine is stock.So, I'm going to ask all you fine tuners out there what you suggest for plugs and wires on my car.I'm going to put new plugs and wires on the 63 before I dig into carb tuning.Hey all,Time to start a new "which is better" debate.