I've got this problem with Blackjack and can't seem to solve it.
The truck will ping (detonate) unless I run premium gas. I've adjusted the timing a bunch of times and can't get it to stop.
Will closing the gap on the plugs help? It has the TFI upgrade and I think I'm running .038 or .040 gap.
I seem to remember someone telling me about an adjustment by allen inside the the vacuum advance tube going to the distributor. Would this help and if so which way would I turn it?
TIA for your help.
The truck will ping (detonate) unless I run premium gas. I've adjusted the timing a bunch of times and can't get it to stop.
Will closing the gap on the plugs help? It has the TFI upgrade and I think I'm running .038 or .040 gap.
I seem to remember someone telling me about an adjustment by allen inside the the vacuum advance tube going to the distributor. Would this help and if so which way would I turn it?
TIA for your help.
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