stefke

I got an 5.0 HO out of an '86 Mark VII that i'm putting in my 1970 Mustang coupe. I have removed all of the emission crap and also the EGR stuff. Because all of this has been removed, i suspect that i also should use other sparkplug with a different degree.

Here's the question: which sparkplugs should i get?

Being in the Netherlands, i can get Bosch and NGK very easy. So i would prefer one of these brands.

Thanks,
Steffan

AdderMk2

dont run bosch, or anything platinum for that matter. if the mark 7 engine is the same as the 86 stang engine, you will need autolite 2545's (i think)

Bubba 95SN

Do not use Bosch, Ford rejects them.

67mustang302

Bosch makes great O2 sensors, but terrible spark plugs.