[KEV951]

put in some new cheap spark plugs, . There could be debris stuck on your reference sensors which is coming in contact to the starter gear on the flywheel, causing noise when you rev . veryify if it spark , fuel , or compression, otherwise you will get nowhere fast. you checked the plugs, said they look charred , was there any light brown crud that looked like carbon? (thats actually oil deposits) plugs are cheap, so atleast test with known good plugs,
$1.99 each and thats what smart racers use anyways, known good and available everywhere reliability, no need for silver or platinum or iridium, stick with ngk copper

what color is the smoke? just white? black? or blue? white is coolant, black is unburned fuel , and blue is oil

I had a problem about 12 years ago where i drove my car up on a drive up rack, scraped a little, thought nothing of it, changed my oil. tried to start , no start? after 15 mins of waiting and tryin to start, finally started, misfired like crazy and blue smoke everywhere? I ended up pinching the send and return hard lines under the car from bottoming out on the rack, i verified this by first checking for spark, then , compression, (both normal) and finally fuel... my pressure was pegged and my fuel volume was almost zero . cut the pinched tubes and ran steel braided line from under the car where the lines pinched to the rail.

that was that,

again, verify the problem first, what is causing it? a lack of fuel? no compression? mechanical breakdown? spark timing problem? Cam timing problem? (compression) This must be done first , there is no miracle answer we can type here. Murphy's law. good luck!