View Single Post
mark houghton mark houghton is offline
Registered User
 
mark houghton's Avatar
 
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,776
Rich,

Why would it matter the plugs you use, whether EFI or stock CIS? Both systems are injecting controlled rates of fuel. EFI just gives you more accurate control under a broad range of conditons. If you've had good experiences with plugs prior to your EFI conversion, then stay with them...no logical reason to change in my mind.

I used to use the W4CS...they were fine but maybe a touch cold for my liking. I have since switched to NGK race plugs R5671A7 (thought they were a little hot) and now am trying R5671A8 heat range. I like them just fine.
__________________
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 03-02-2010, 01:43 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)