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rooster31
04-26-2011, 01:25 PM
whats the best spark plugs to run on a pair of 882 heads flat top 355? thanks

wiley78k
04-26-2011, 02:56 PM
try autolite 26s' ran good for me. hottest spark range for that style plug that i know of.

Moldymulldoon
05-01-2011, 03:33 PM
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
05-01-2011, 09:29 PM
ngk 5674-8

wiley78k
05-02-2011, 04:41 PM
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.