For the Walbro 255, Bosch 040, etc. fuel pump conversion the correct rating for in-tank fuel hose is SAE 30R10.
NAPA sells hose in the correct diameter for OG 9-3's (and probably others), 5/16" (7.93 mm). Part number NBHH209 for 1 ft. It's not cheap.
just thought i would show you guys some pictures of how i did it.
question and comments welcomed
screw pulling the tank out!!!
tin snips helped me out here
the pumps hookups at reversed from the stock one.