My airplane (under construction) is a non-pressurized IV. My engine is a TSIO 550C. I have installed 1/2" fuel supply lines and 3/8" returns in the fuselage. However, when I built the wing I used the fittings that Lancair supplied in the kit for the wing root which (I believe) were 3/8" for the supply and 1/4" for the return (even though I vented the tanks using 3/8" vent lines.) The wing is finished and pressure tested. Now what do I do? (hoping for a non 'motivation killing' fix.) Thanks

Nick Paczkowski