dynoed my 06 F150 today and got some really strange air-fuel ratios. The ratio is way lean (high 14's low 15's) well into wide open throttle. I'd like to comper with somebody else who has a dyno sheet on a stock 4.6 (no tune/chip).

 

so what were your hp and tq numbers ?

 

211hp/240tq

 

Is that at the rear wheels?

 

yes