Duckin

Thanks, I am going to start with the valve guides and seals,then if that don't work I will get further into it.

I have got a 87 big bear 350 4x4, I have been working on.It was running rough when I bought it.I cleaned the carbs and need to adjust it a little more to get it right,but it is running better. But, the problem I have it smokes alot,when I bought it and got it home it was low on oil and did not smoke much,but after I added the proper amount of oil it smokes alot.It is white colored smoke and it has oil residue on the tail pipe,it seems to have good compression. Do I need new rings or valve seals or guides? Any help would be appreciated.