Plugging the holes would mean the spent oil cant be released,hence why air filters fill up with oil? The tech said this part is to take the two hoses, but I have to buy the t-hose to split the two in, just found it inconvient not to supply it.

 

That oil blow-by can most likely be eleminated by reducing your engine oil level down a bit. I never fill past the half way mark on my dipstick and don't have that problem (any more). BUT, water and other nasty stinky contaminants get vented out those breather holes, so you don't want to plug them up.

 

What are the dangers of having a bolt come loose and fall down carb?

 

Well, worst case is it gets sucked into the engine and writes the engine off.

Everything around the A/C needs red Loctite.

 

That part is for the float bowl vent/overflow hose on a carburetor. Your AC wasn’t made for a throttle body.
You can still make it work… you’ll just have to use a little less whining & a little more ingenuity.



Let's see some more pics of what you've got so far.
What do you have for the support bracket, the AC backing plate & the crank case breathers?