Re: Is 13.5-13.6 too lean at wot??
Speaking to a few engine builders......
COME Racing in Melbourne say that 13.2 is your magic number.........they have extensive dyno research (make their own cams/heads etc).
Too rich, won't give optimum burn. Too lean and it starts getting way too hot, pinging/burning things etc. Safer to run tad rich , than tad lean.
Make sure your dyno guy is running a WIDE BAND oxy sensor. Most should be. They use a 0-5volt gauge instead of the standard 0-1 volt vehicle types.
393 Tremec TKO 9"