smoking 350

okay so i took a perfectly running 350 chev and installed an edlebrock performer high rise, an rv cam and lifter kit and double roller timing chain. i also installed a high pressure oil pump. that's it, i nnever touched the bearings or heads, put everything together and the thing ran like a top with great throttle response and a big improvement in power. there is just one problem, after about 30 minutes of normal driving it's smoking out of the drivers side cylinder bank. remember this thing ran perfect before with no
oil burning whatsoever.i'm thinking maybe i didn't adjust the valves right but i have readjusted them twice and still have the same problem. any sugesstions?
thanks a bunch

Intake manifold gasket leaking on the driver side from the valley, sucks in the oil.