In this first version, the mod adds a variation of the engine nacelle which intakes 00.4 IntakeAir and it's original 40 LiquidFuel, and a version of the radial engine body that has intakes the 0.02 that does in vanilla, but instead has 80 fuel. I highly recommend JoePatrick1's Fuelled wings mod: http://www.curse.com/ksp-mods/kerbal/222324-fuelled-wings
Note: the original parts are still in-game, mainly because I can't change it.