What fuel ratio should I be shooting for? I am at about 14ish. I have read a few past post saying 16 is near the lean side? So higher the number the leaner? Sorry is this is stupid question...

 

This is exactly why you have to test test test. To find out what your particular car likes. The ecm in closed loop will average 14.7:1.
In a lean cruise you might get 16.5:1 (which is leaner then 14.7)
At idle a 15.x, in open loop is a fair average.
In Wide Open Throttle, it can be anything from 11:1 to 12.5:1.

It's Air Fuel ratio. the more air (leaner) the higher the number so 12:1 is much richer then 16:1

 

But how would you tune on the street using the stock O2 readings?

How do you know when it's too high or too low at WOT?

My part throttle tuning is very close to being "ON" but my WOT performance is somewhat poor.

 

When I had my car Dyno'd the A/F was 13.1 which was ideal for a 350.