ok, got the fuel canister cap from genos. hooked fp guage up today, everything went smooth except after i primed the system guage stuck @ 5 psi. went back through connections, all good. hooked sending unit up to air compressor thinking unit might be jacked up, but guage shot to 30 psi, unit good. no fluctuation on guage reading when rpms are increased. will there be a different reading on guage from tapping the fuel canister housing compared to tapping the fuel line under inj> pump?? btw, lift pump is good. any and all help is appreciated