Hello all

This is a stock b20z2 including the torque chamber in a hb with i/h/e. the reading were taken with a zietronix wb.
at idle the afr is right around 14.7 to 15.2 and getting on it at w.o.t it dips down to around 10.5 to 11.9.
Would I gain any hp if i leaned the top end out a bit.
If so how much should i shoot for.

thanks in advance for the help.

 

if you lean it out to aound 12.8-12.5:1 you should gain some power and still be very safe....