OK anyone out there using a YF carter,for 235, does it have port vac. or manifold vac and if it has manifold vac have you had trouble with the timming being advanced at idle,I put a 4480s on my 235 and she just did not idle right with manifold vac because the timming was fully advanced and do all YF2100s carters have manifold vac.I understand that as soon as I'm off idle that carb would be fine ,but just could not get the idle right .

And if you have any other YF cater what # is it?

Pete