Thread: L78 & Today's Pump Gas?
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Old 04-23-2021, 05:06 PM
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Chuck_Burg Chuck_Burg is offline
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California 91 does NOT work in our L78! It is a 67 with closed chamber heads and NOS .030" over TRW pistons. 5 gallons of 110 leaded in each full tank make it run beautifully, 36 degrees total timing.
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Chevelle SS 396 L78 (05-31-2021)