knock retard

[inssane45]

Have desensitezed knock sensor with resistor and toggle switch and still get kr
on scanmaster. Here are some readings on scanmaster. o2 at wot about 840-880 kr up to 7 deg. inj pulse wot just over 10 but drops a little. sp adv wot 39-40 deg. Have new maf, opti, icm, msd coil, plugs and wires also car seems to run rich at idle can smell exhaust prabably bad o2's gets 10mpg. checked a few plugs look fine tanish-brown color
95 camaro m6 cai, 52 mm tb, bbk shorty headers w/ y pipe, no cat. magnaflow exhaust, 4.10 gears, tb by pass, 160 stat, pcm4less tune.
any help apreciated

[BlackLT1Z28]

I'd go for and LT4 KM.