i have a 97 ek coupe with an obd2 ls swap which i have stepped down to obd1.so ive noticed for the past week that when i accelerate hard enough my car blows out what seems to be blue-blackish smoke and i can clearly smell gas.ive read up about it possibly being bad valve seals or headgasket or maybe even a bad head. i just want to see what i can do or try to stop the smoke car runs a little stressed like if its bogging at points though.any help would be appreciated.thnks