I think I can up the air/fuel ratio a bit, dont you?
This is for an n/a.

 

The A/F looks decent to me. I ran a bit richer than that and was told I would get more power by leaning it out.

 

I agree...A/F doesn't look too bad at all. I would lean it out just a bit, but that's not bad. Are you sure all your components are working up to par (I'm really thinking that the ports just might not be doing their job right now), leak somewhere maybe? Those numbers seem a tad low, do you have any mods on the car? If so those numbers are VERY low (of course mod dependant). What kinda condition is the car in...?

 

seems pretty close to borderline. I see at 3800 you ran a 15.1 A/F. Thats TOO lean, by a bit. I wouldnt run anything thats in the 14s, much less the 15s and thats a fact. N/A or or not. Your power numbers are a little low, but lets hear your mods and compression numbers.

 

I'd have to say that around 14.2 is about where I'd start to get worried for my own car. 15.1 is really out there (guess I shoulda read the entire sheet huh ). I am also very curious to see what kinda condition the engine is in, you can't really answer if the numbers are good unless you know what's on it .

 

just cold air and no cats. It has stock cat back, and I fixed the dip in the hp when it ran 15.1 air/fuel by adding 9% more fuel. The car has 106k miles on it. Intake temp about 100 degree F.