4.2L, MSD Blaster Ign.
Yeah, I know, ANOTHER 90 4.2L with idle problems! When I installed an MSD Blaster High Vibration coil about 9 months ago, it REALLY helped. I just installed an MSD Blaster ingition box. I would have bought the 6-Off Road, but the $120 less expensive Blaster was in my budget. My question is, "Even though the Blaster is fairly weak, should I adjust my spark plug gap or tweak my idle mixture?" My idle is still rough, and I know it will be till I get back to the states and can more easily get what I need. My tach also does not work since the magnetic pickup is disconnected from the stock wiring harness. Any suggestions???
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