Anytime you ask about spark plugs, you get lots of opinions and often some arguments. But here we go anyway. I put a 1962 Chevy 235 engine in my 53 project truck. I don't know anything about the engine except that it had been in an A.D. truck before I bought it. It does run, but now that it's driveable out on the roads, I find that it doesn't run very well. I did not put new plugs in it, I figured I'd try the old ones first. I'm not real good at diagnosing a poor running engine, so I thought I'd start with new plugs. What would you guys recommend for this particular engine?
