I have some msd spark plug wires, I hear them click onto the optispark, but when I go to hook them up to the spark plugs I can't tell if they are on, because I don't believe they click on like they do to the optispark. So do I just push as hard as I can and hope they are on or is there a way to tell? Thanks for any help.

 

they should click onto the plugs, also, usually, there are 2 clicks onto the opti

 

Take an old plug and put the wire on it until it clicks good, then make a mental note of where the logo on the plug is in relation to the plug boot. That might help you.