unless the line ID is too small (not likely unless a high HP app which ain't the case here) so right now if you have enough psi at the carb INLET then you are good. What Lewt said, I'd want no filter before a mech pump and I would want a 100 micron before an electric pump then in either case a 10 micron filter right at the carb inlet. In your case a parts house Wix filter before the carb is fine (mech/not elect pump correct?) If elec & mech then the 100 micron before the elec is a good idea to protect it. You'd be surprised at the amount of crud that makes it thru gas stn pump filters