Hey guys,
I installed a GM ZZ502 HO crate engine in my 69 Camaro. It has a Holley 850, and sadly, fouls out spark plugs quickly. The 502 came with the AC Delco rapidfire #4. Is there another spark plug that will fit and possibly work a little better and not be so prone to fouling? I was recommended the Bosch 7956, as it is supposed to be a hotter plug and will help burn off the oil and help keep from fouling. Any other suggestions?
Thanks,
Steve