How long do percocets take to kick in?

I popped three ip 203 percocets at once. I'm 17 and I've never swallowed them before(I don't know if those things have any effect), but I have blown one before before. I ate dinner (spaghetti and meat) like an hour and a half before i popped them. Are the percs I took even powerful? I traded my friend a gram of weed for them. lol. any help is greatly appreciated. just PLEASE don't leave comments telling me not to be taking drugs. and yes it is for recreation if you couldn't tell already.