Ok all decided to give this an other shot put on bench,no muffler does not fit due to clamp down nut primed, hit with starter instant light off , died too lean, finely at 4turns open, that is a lot, zinger 8x4 ,10600, then 10,70010,800-10,900 would not hold 11K this is the new p/l will check for air leaks around carb 4 turns out alot or just a querky cab bot now a happy camper with this beast, compression awsome martin