Major engine trouble!!

[Coupe50h]

Just got the stang back on the road, has been running fine on short trips, today is my day off, so i thought id take the stang to work to get an inspection sticker.
I was almost there about 10 miles from my house, at the stoplight, and i heard loud rocker noise, or lifter noise, then i noticed my car smoking white smoke, it lost power, and started vibrating like it's running on 7 cylinders? I immediately turned around and went home, I popped the hood and the engine is running like crap, shaking around?

Im going to tear it down right now, I just installed tfs springs and some crane 1.7 rockers, already had an e-cam and some basic mods.
The noise went away mostly, but it's still smoking white? The lifters and pushrods are about the only thing that i havent replaced lately, hopefully someone can help me

Btw oil pressure stayed up the whole time.