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Old 10-22-2019, 09:58 PM   #16
TerryH
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Join Date: May 2010
Location: Fountain Valley, Calif.
Posts: 937
Default Re: Hi compression head and stock ignition

I also have a 5.5 HC head, been running it for almost 14 years now with everything else stock, except lightened flywheel and v-8 clutch. I adjust the spark lever all the time as I’m driving...it’s like second nature now...and mine runs just great at 9:00 when I’m driving normally.
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