i have a 1996 camaro z28 with lt1 . do you have to remove waterpump to replace plugs , cap , and rotor . also , what is seafoam .

 

You have to remove it to replace the distributor but not the plugs.

Seafoam is junk.

 

Seafoam is a powerful cleaner that can be added to your gas, it can clean your crankcase when added to your oil, and cleans the inside of your intake manifold when added directly into it through the throttle body or a vaccum line. I havent had any bad experiences with it, except it has been known to foul O2 sensors prematurely.