Originally Posted by crochunter
What brand and heat range plugs does everyone use. And what type motor.
I use BCP5ES's on the street as they aren't as important on the street due to it not being loaded up.
I use BCP6ES's on the dyno and track. Stops a slight run on issue I have on occasion. Also makes a few extra kw.
Thats on a 351 with 11.5:1 comp and alloy heads.