1990 Chevrolet C1500 "bad spark knock chevy 350" Questions

bad sending a signal to the Computer causing the computer to readjust the spark advanced timing causing Knocking and pinging....... or it could be as simple as bad gas. If you changed the timing chain

...spark it should run. Getting to the fuel side-"is fuel getting into the engine?" Your ignition may work, your starter may work, fuel pump may work, but if you have an ignition key with a resistor ...

bad timing spark plugs wires r go and n order checkd 50 times ( i dnt have a timing light either) any body kno wht my issue is here.......?????? You might not have #1 at tdc on the COMPRESSION stroke.

...spark knocking real bad Is the engine running hot or overheating? This could cause that to happen. If it's not running hot check your timing. If the timing is on time try advancing it 1 or 2 degrees. ...