blanch 53 I heard complaining about exhaust fumes at a parade last fall,now I don't have the only AD truck in this whole group that burns propane for that exact reason,but it sure doesn't pollute like those cammers !! My reasoning is clean oil,no sludge,economy,never cold natured,no fuel pump,no dirty rusty gas tank,no messy fuel filter(is dry) no sorry liquid fuel carburetor to fight is easy to trouble shoot,buy AMERICAN made parts brand new from the internet. 78 buckshot is right about kill the catylyst. Your 57 is an ideal candidate could run 12 to 1 compression too. Also have an 04 GMC injected propane EPA certified dual fuel is automatic switches fuels on it's own just punch the button. Sorry read it wrong 78 buckshot has the 57 283 my bad . Should have said or punch the button to change fuels if you need to.
Last edited by fixite7; 01/16/2023 12:10 PM. Reason: apology
