Team Chevelle banner

indexing plugs for power

1476 Views 8 Replies 6 Participants Last post by  CHITOWNHUSTLER
what have you guys found in power with indexing spark plugs??

looking to try this on an approx 800 hp pump gas 548" bbc

has nothing to do with piston dome clearance,just talking about pointing the plug in a way where the ground strap isn't orientated in the way from the air fuel flow path

also,are you pointing the gap so its facing the intake valve or facing between the intake and exhaust valves,which in my guess isn't all that critical

1 - 1 of 9 Posts
There are 2 kinds of indexing washers, flat and cone shaped so check which one's you need.My parts guy has dynoed engines with and without and he say's there is no increase in H.P.
1 - 1 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.