Engine throws black smoke when i hit the gas, little white smoke on startup but idles ok. Been trying to time it up right but figured id cut my losses and just try to freshen up the engine. the Previous owner tossed allot of cash and time into it so heres the build: 1970 Plymouth Valiant 225ci Slant 6 engine professionally rebuilt 10:1 compression. hypereutectic piston rings. ported cylinder head. Long Ram Aussie manifold. QFT 450 cfm 4bbl carb. Dutra dual exhaust.4 core radiator with upgraded water pump. Msd 6AL ignition NGK spark plugs, and a mild cam. Now i was dumb and didnt get cam specs when i bought the car so i have no idea where to set the valve lash. What should i do? I want to get her done and running good in about 3 months and im not looking to spend more than $800-$1500 unless im getting some decent power but im just looking for a solid freeway cuiser nothing major. EDIT: trimmed some fat off the post as to not confuse people.