Originally Posted by
Shawn68z
Run the Picco P6TC Its the best plug overall for the motor. If its too hot out, or you have a long straight away and think the motor is pre-detonating, then switch to the P7TC.. RCMART is the best place to buy these plugs.
Shawn.
+1
The Picco plugs have a unique taper and seal better than others.
You may also find them as 'Mega' branded.