so i took my intake manifold off to port it with a dremel like i saw in a different thread. so heres my problem i ported it but when i was putting it back in, where the vacline connects to the intake that piece broke off. so i put it all back together anyways and ran it. the first run it was idling around 1700rpm and when i hit the gas it had no power it wouldn't go. i took it apart and notice one of the @!#$ty rubber band gasket knockoffs was wet in a bit of oil and there was some oil on the inner wall of the intake not much.
so i cleaned it put a little spacer under all the rubber bands to make them stick out a little more. put it together this time it still sounded rough but it was idling at around 1300rpm and when i gave it gas it worked. roared with alot more power by the sound but alot of smoke was being expelled from the exhaust though and the exhaust smoke smelt weird too. im guessing one of the gasket thingys might be leaking a little again.

my question is is this happening because the vac line isnt connected or just cuz the gaskets are @!#$ty?. and if there any other way to reconnect the vac line instead of getting a new manifold

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sounds like you still have a leak, check it and seal it, should go back to normal

any tips on how to seal it better. im reusing the original seals they looked in good shape. should i oil them up or add anything to make them work better. and the oil that's coming from the head where i believe the valves are thats going into the manifold. is that also because of the seal or is that maybe because i took off to much from the intake and the intake hole is a little bigger then the ports on the engine.where it feeds? or just the vac problem there