question: m20b20 shud i overhaul or change it.pls read.pls help.

[dungbtle]

bros and sifus, lately my car's getting worse and worse. here's the deal, it's an e30 m20b20 manual. these are the recent occurences and its made me feel shit miserable owning a UDM althou i love it so much. if anyone wud gimme your kind opinion , i'd greatly treasure 'em. 1.white smog.(prolly piston rings) and darn smelly burnt petrol smell from exhaust. 2.extreme loss of power, 3.very bad consumption, rm10/30km, 4. engine loud(not tappets,cos i've adjusted them)5. whirring sound( bmworld speculate it's the conrrod)could these symptoms be a cause of the plugcables? or loose valves?if it was you, what would u do first? top overhaul? it seems that another option for me is to change engine terus since there seems to be a lotta prob. and the price seems to be almost the same isit? (that is, if i find a decent engine) yes, price is an issue. because money dont fall into my maybank kachink automatically.hehe, but whatever it is,i'm determined to save my car, cos it is surely an agony to be driving my eDirty around and when i look at my rear view mirror, a lady across the street is covering her nose because of the fumes and white smog that come outta the exhaust. then the aunties in kancils and charades are tailgaiting me when i climb a slope, cos i know if i tekan, rm10 will be gone in 60seconds.hahaha and i'll still be eating my own smoke.right now, however, i'm just driving her on a daily basis, without a clue to what i shud do to her yet. secretly i have to park her off away from the crowd ...because when i start the car, the thick mushroom fumes are like the white smog that come out of a fired WW2 canon.so S O S...thanks in advance...cheers bros.