i need help trying to figure out my problem this are my current mods on my 97Z28,6M,CAI,mt dr,fidanza flywheel,stage 3 clutch maddog,LT pacesetters,km,airfoil,1.5drop, on the take off as i release the clutch slowly the whole car shakes,theres a tapping noise on the engine on the driver side but this only occurs on low RPM only when im driving,it doesnt happen on neutral even if i rev the engine and a lots of backfiring too,i dont have cats and the rear o2 sensor but i never had problems until now,spark plugs,wires,coil and opti had been replaced 3months ago,any help i will appreciate!

 

Check your plugwires, you may have burned one or more. Sound like the same thing my car did and just got done replacing my plugwires.