Hey guys. Im about to rip my heads off and have em replaced with a set I got of MadMagna.

I have one concern though.

How Do I reset the ignition timing once the heads go back on?

Madmagna was saying something about a wire on the firewall near the iginition coil that needs to be grounded?

Any help would be good please.

Damian

Get and read the manual. You will need it to get the procedure and torque wrench settings for the heads anyway.
Ground the connection with the cap on it, the other one is for testing the fuel pump (this one goes to battery +, ground it by mistake and risk smoking some wiring lol). Set ignition at 5 degrees + or - 2 degrees, remove and check that the timing jumps to about 13 degrees BTDC