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Old 06-16-2016, 08:29 PM
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moontower69 moontower69 is offline
Chief Ponti-yacker
 
Join Date: Jul 2007
Posts: 526
Default Run on pump gas?

Does it ping in the summer on pump gas? With those #62 heads the compression would be pretty high (unless it has dished pistons). I've had bad experiences with 62 heads and pump gas on these 400s.

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1974 Lemans Sportecoupe GT (daily driver)

.030 over 354, #47 heads (84cc), Lunati voodoo 700 camshaft (207/213 @ .050), logs, 2.5 duals, X-pipe and Dynomax super turbo mufflers, 3.08 rear