UPDATE: well when I said it cuts out at 5700 rpm this is with my stock 48mm throttle body... Today I tried my BBK 52mm throttle body and watched closely.... I notice with this throttle body it does the same thing, but it cuts out at 5400rpm?? Is this a tuning issue?? My tuning was done by PCMforless but Bryan says its not tuning.

What do you think...... any experts in the house?

It's like now I get more air in and it cuts out earlier.....

 

On your scans during WOT/ during stumble what do your 02's look like?
Are they dropping way off?
Kevin

 

I took a good look at my datamaster playback from a few runs.... It looks as if my O2's are at around 140 BLM's long term and at 128 short term. Am I leaning out? Maybe it's my fuel pressure?

What do ya think?

 

Shot you a PM with my number . Give me a call tonight
and I'll tell you what I know.
Kevin