spark plugs

[rooster31]

whats the best spark plugs to run on a pair of 882 heads flat top 355? thanks

[wiley78k]

try autolite 26s' ran good for me. hottest spark range for that style plug that i know of.

[Moldymulldoon]

Be careful with 'hot plugs. Preignition will cause all sorts of failures.
Colder the plug the more heat is absorbed into the head. Hotter vice versa.

No need to start a peeing match. IT is the truth.

Moldy

[bushracing67]

ngk 5674-8

[wiley78k]

Well with the resistance to spark running 112-115 octane fuel you almost need the higher spark range plug to get the complete burn into the cylinder. This is also where your cam lift and duration play a part as well as your valve sizes.