So I'm out with the car after a month or so break, and after an hour of highway and light cruising decide to mash it from a slow (5mph) roll. The car stumbled, backfired a couple times, then took off, backfired a couple times, then took off again. Alarmed I checked for KR - nothing. All scanmaster numbers look decent besides a slight lean condition at idle (BLM 142) I've been battling for awhile. Nothing has changed in my setup since last cruise or since I was last working on the BLM issue.
Took it out a few days later and did the same thing. No stumble when going WOT from a fast roll.
I think the gas is in good shape as I'm currently mixing 50-50 110 with 91 pump. Using Delco 43s gapped at .032. New plug wires.
Could this be the coil?
If so, and I go with the Highway Stars coil, any reason to go with the high output coil they offer?
Took it out a few days later and did the same thing. No stumble when going WOT from a fast roll.
I think the gas is in good shape as I'm currently mixing 50-50 110 with 91 pump. Using Delco 43s gapped at .032. New plug wires.
Could this be the coil?
If so, and I go with the Highway Stars coil, any reason to go with the high output coil they offer?