Spark Plug Wire help!
Posted: Sun Jan 22, 2017 2:59 pm
I have a 1971 302 with a Mallory HEI distributor. The spark plug wires are Accel Super Stock Hi Temp Radio Suppression Core 8mm. I measured resistance of 5.4-6.78k ohms per foot for the wires. I believe these are solid core since the prior owner generally bought cheaper stuff on Summit.
Looking at the Summit listing for new Accel wires (4000 series, the cheapest yellow ones), the solid core ones state resistance is 500 ohms per foot. However, other websites have said that generally 6k ohms per foot is ok for resistance (thought they may not have been talking about HEI).
1.) Is a 6k ohm/foot wire ok for HEI?
2.) Are all of my Accel wires fine, or are they all having really bad resistance issues?
I ask because the engine generally runs a bit rough and the vacuum gauge wanders slowly between 19hg and 18hg at idle. I have a comp cams XE256H cam that states it should have good idle, and 1.7 rockers.
Looking at the Summit listing for new Accel wires (4000 series, the cheapest yellow ones), the solid core ones state resistance is 500 ohms per foot. However, other websites have said that generally 6k ohms per foot is ok for resistance (thought they may not have been talking about HEI).
1.) Is a 6k ohm/foot wire ok for HEI?
2.) Are all of my Accel wires fine, or are they all having really bad resistance issues?
I ask because the engine generally runs a bit rough and the vacuum gauge wanders slowly between 19hg and 18hg at idle. I have a comp cams XE256H cam that states it should have good idle, and 1.7 rockers.