Best spark plugs for a slant 6 225

Best spark plugs for a slant 6 225 - 07/12/10 01:50 AM

I have a '64 Belvedere with a 225 slant 6. I am slowly upgrading to a electronic ignition. What are the best kind of spark plugs to run. I have msd blaster 2 coil and msd 8.5 wires. Putting in a msd 6a next. Anyone have any thoughts or what are you running.

Posted By: vynn3

Re: Best spark plugs for a slant 6 225 - 07/12/10 06:42 PM

NGK ZFR5N extended:

http://slantsix.org/forum/viewtopic.php?t=33900&highlight=ngk

Posted By: DusterKrazy

Re: Best spark plugs for a slant 6 225 - 07/12/10 09:11 PM

Quote:

NGK ZFR5N extended:

http://slantsix.org/forum/viewtopic.php?t=33900&highlight=ngk

I use these!

best plugs I have used so far

Posted By: '64 Belvedere

Re: Best spark plugs for a slant 6 225 - 07/13/10 12:58 AM

Thanks guys I will try them