View single post by Tom Bradley
 Posted: 02-07-2019 04:12 pm
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Tom Bradley

 

Joined: 07-15-2013
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 Rick,

McMaster-Carr has reasonably-priced anti-backflow valves that are rated for gasoline and can be spliced into the tubing. The 0.5PSI pressure required to open the valve for forward flow should also help prevent gas from coming out of the carbs on a forward slope. They also have high pressure versions that require 2PSI to open up forward if you are dealing with really steep slopes.

https://www.mcmaster.com/catalog/125/538