Originally Posted by bonnevillemac
I noticed on you sig you have autolite 103 plugs "side gapped" what does side gapped mean??
When you installed your higher ratio rockers could you tell a difference in performance??
I'm thinking of doing those in the near future and just wondered if the gain is worth the dollar??
I really appreciate your help. Thanks
Side gaping is a more accurate way of gapping the plugs, the ground strap is more uniform and it helps eliminate hot spots. Another trick is to index the plugs where the ground strap is pointing in the same direction of all the plugs so it gives a more uniform burn.
The high ratio rockers passed the butt dyno with flying colors, much better top end, I'd guess 20whp?
If I were to do it again I would run with a new cam, a few more bucks but better overall performance......my 2 cents anyway?