Kid
Not sure where you got your information but its not accurate. I live in Flagstaff Az. 7000 feet, thats a mile and 1/2 up AGL.
I adjusted my oxygen sensor to max. and my 51 1/2 ton purrrs like a kitten.
Its a myth.
D@C


1951 Chevy 1/2 pu
Restoration/stock
Deluxe Cab
Five window