Not getting pinging associated with it when it happens, are you?
The HEI distributors' centrifugal spark advance would sometimes hang
fully advanced intermittantly (rusty), usually after a hard
acceleration, then when you stepped down on it again, you'd get flat
reaction and hard pinging...
Not sure if '89 still had the mechanical advance either...
Is that carb'd or TBI?
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jeffcoslacker
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