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rotorwrench · 07-31-2022, 04:48 PM

When the US government mandated unleaded fuel back in the 70s it took a while for it to kick into high gear. Hardened valve seats had to make a come back for its use. My little Courier pickup wasn't made for unleaded fuel. They changed the size of the filler openings for unleaded so that the older leaded gas pumps wouldn't fit. All sorts of little stuff changed after that.

07-31-2022, 04:48 PM	#34
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,522	Re: Pinto engine conversion When the US government mandated unleaded fuel back in the 70s it took a while for it to kick into high gear. Hardened valve seats had to make a come back for its use. My little Courier pickup wasn't made for unleaded fuel. They changed the size of the filler openings for unleaded so that the older leaded gas pumps wouldn't fit. All sorts of little stuff changed after that.