I use the bowl gasket from Keyster carb kits. Otherwise, i don't care for the rest of the kit, Keyster parts i will not use are the main jet and needle, otherwise the rest is ok. Never been convinced the Keyster main jet and needle are the correct taper, have had problems getting the CO settings w/in spec on the exh.gas analyzer. I look for wear on the needles and jets, if they look ok, i use them and have not had a problem yet getting CO settings w/in spec with original needles. One person's opinion. Hope this helps.