Instaling Nitrous Injectors On Dejon Intake Manifold

[TT_NS]

I have the engine pulled out of the car right now cuzz i am still building it i am about to put the dejon intake manifold on it but i have a lil problem. i plan on putting a direct port fogger system on it i just dont plan on buying it right now (more important things to get) and i no that I will have to take the intake manifold off later to drill the port holes in it. Is there a way i can drill and tap them now and block off the holes so later i can install the kit easier? If so how? and wut tap and die set would I need to use (wut is the size of the threads for thenitrous injectors)?
Thanks for ur help

 

[MNGSX]

You probaly want to get bungs... Threaded (like a nut) weld on holes for the nozzels... Get them and have a shop weld them on then thread plugs into them... You really cant D&T thin sheet metal and expect them to hold so get the bungs.

 

[TT_NS]

makes since. thanks