another update on this - big thank you to Vtecmec, moving around those vac hoses helped a lot! still have a slight misfire, but theres no more tonnes of smoke out of the exhaust, no more overfueling smell and black crap being thrown out, the idle is much better and no more TPS sensor warning either!
here's how it currently is;

all 3 of the hoses are connected to one T piece and going to the inlet manifold, leaving the fuel vac on its own to go into the inlet manifold further down.