If 10.5 is as rich as it goes then something else is causing the misfire.

 

Unless 10.5 is as low as the wideband goes.

 

What plugs are you running and what are they gapped to? Is it possible you're blowing the spark out?

 

its all the down on my wideband, and they are factory plugs, maybe i should try two new 02 sensors, and a set of plugs, what are you guys gapin them to?

 

I have yet to see one that didnt go at least as low as 10.0

 

How much boost are you running? Run a NGK BR6EF or BR7EF depending on your boost level. 10psi or less I would gap at .032, over 10psi I would gap at .028-.030 IMO

 

I would close the plugs up around .030 one step colder. NGK tr6 to start. But you need good 02 sensors. I would do plugs first..

 

I would say you need new o2s, new plugs gapped to .030, and a dyno tune if you can't at least log it to send to Allen.

 

ok i fibbed the gauge does hit 10, and at a quick wot throttle it pegs 10.0 and then cutts out/misfires, while the the gauges goes back around 11.3 and stays there till about 4000 in neutral, i put one new bosch 02 sensor in , new ngk tr6's gapped to .30 and it is a tad bit better but just barely, i took it down the drive way, at a 20 mph roll matted it and it never cleared, it would of kept cutting out/ misfiring until i let off, it just reeks of gas at wot, i also sprayed my vacuum lines on the truck with starting fluid while idleing thinking maybe a leak, but it never reacted, im just gonna drink on it anymore help would still be appriciated, thanks for all the input so far

 

If its pegging 10.0 it may be even richer then that, that may be as rich as the wideband reads. It may be way overfueled. Hard to say without seeing a log, any black smoke?