MSD upgrades

[96redsport]

I got an MSD 6A box, coil and low resistance plug wires I'm wanting to put in and looking for plug recommendations... Suggestions and actual user experience please...

 

[GR8WHITEHOE]

I'm a die hard NGK fan...
I use NGK Iridium IX #7164 on my Tahoe and I'm very happy with them.

 

[jerryjoe28]

I run a MSD dizzy, box, coil and wires..... Autolite XP iridiums XP605s...... im sure sunlit can explain on a deeper level why

 

[SunlitComet]

for these vehicles use autolite xp605 or delco 41-993. however you will not get them to last a whole 10 years or 100k miles with a full msd setup. the system can eat up plugs quicker then a stock system. i ate thru standard copper cores from .060 to .078 in less then a year with the msd system and it still fired with no ignition dropout issues.