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cas3 · 01-22-2017, 11:34 AM

at speedy bills museum in nebraska they have one of smoky yunicks (spelling?) daytona 500 motors from about 1964 or so, and smoky drilled a hole in each header about an inch from the block so he could see the color of the flame leaving the block. rumor was this was some super smoky speed trick and next year every one had holes in they're pipes , not knowing why they were there!

01-22-2017, 11:34 AM	#8
cas3 Senior Member Join Date: Jan 2011 Location: sw minnesota Posts: 4,578	Re: Visible flathead combustion at speedy bills museum in nebraska they have one of smoky yunicks (spelling?) daytona 500 motors from about 1964 or so, and smoky drilled a hole in each header about an inch from the block so he could see the color of the flame leaving the block. rumor was this was some super smoky speed trick and next year every one had holes in they're pipes , not knowing why they were there!