"Can a small crack in the vacu
"Can a small crack in the vacuum line going from the fuel preasure regulator to the intake manifold cause the engine to miss.Its only misses at 2000-4000 rpm.There was a splice in the hose and it was cracked at one end where they came together.Also I have been told to only run ac delco plugs in chevy's. I have ngk's in it now, it was missing before I put them in.Not sure what was in it before. Doubt of it is the spark pkugs."
"Can a small crack in the vacuum line going from the fuel preasure regulator to the intake manifold cause the engine to miss.Its only misses at 2000-4000 rpm.There was a splice in the hose and it was cracked at one end where they came together.Also I have been told to only run ac delco plugs in chevy's. I have ngk's in it now, it was missing before I put them in.Not sure what was in it before. Doubt of it is the spark pkugs."