Some one ask about a STC for a M-10. Petersen Aviation has auto fuel STC's. Also, I think that the Ercoupe Club owns the STC for Ercoupes.
I talked to Petersen last week about another issue and they seem to know their stuff when it comes to auto fuel in planes. Standard cost for a STC is $1 per horse power. They have a web page: www.petersen.com Jack 99069 (less one engine) :-)
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