I would suggest converting the
engine to unleaded. Lead was a lubricant and without it you will fry
the softer leaded specific parts eventually. Having to deal with
unleaded additives is a science in itself and is very costly. An engine rebuild
will pay itself off in a short period of time. I burned up a lifter trying to
keep up with it and was always battling a ping even with high octane gas. After
my engine was rebuilt and converted to unleaded, I can run on 87 octane, all day
long, and never have any issues. Plus I got about another 10 HP from just
machining the heads a hair off in the process. I have never had to worry about
gas or additives since. Plus 87 octane is cheaper then 94 and the cost
of additives in every tank full. Trust me on this one.
Marty Trendler
1959 Imperial LaBaron 4 door Sedan
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