what gaskets are needed when swapping out the optispark other than waterpump gaskets

 

no other gaskets are needed, change opti only after you've checked everything else

+1 on icm relocation

 

okay so new coil, icm, plugs, wires and o2 sensors still runs like ****. i have a new gmpp optispark on the way, so i hope thats the fix

 

my 92 vette did about the same thing. Would run fine cold but once it warmed up it would sputter and eventually die. Put a new opti in and it has been working fine for the last 3 years. Now that I said that it will probably **** out tomorrow morning.

 

new opti and runnin strong