FWIW.......... back around '08 when all the 340 Walbro's were taking a dump, I got stiffed on 3 of them (all on warranty). All crapped out within 1-2 weeks, and that was enough BS for me. I installed an EP-381 gm pump and it's still going strong. TE-60 25PSI, Alky, zero KR, O2's sit around 740-750 rugged in 4th. Works for me.