Suggestions on emissions tuning

[Slade]

I have my MAF tuned in line with my MAP and WOT tuned on a dyno with wideband to a nice 12.7 across the board.

My O2 sensors were just off the wideband by a few points ie running 14.5 to 15 on cruise while I'm commanding a 14.6 AFR in HP Tuners. I have cats on the car so I would guess that I'm running either close or to what I'm commanding or a bit richer.

My question is what should I focus on to get the car to pass emissions? We do an idle test and a drive test that is 1800-2500 rpm.

Cam is a TR224 0.561 lift, 112 LSA. Longtube headers, ceramic coated, cats, true duals, stock 98 LS1 heads, LS6 intake and Air Lid.

It is a bit rich at idle according to HP tuners, I've played with leaning it up in the primary VE and raising timing a bit, but I think something else is richening it up there. Any suggestions on how to proceed?

[radkon]

Its gonna be tough if they sniff it. The TR224 114 can pass but the tune has to be pretty dead on for a 112 to pass. Start with the VE table and get it perfect. Then double check the MAF and watch your AFR. Keep it as close to 14.681 as possible and pray. Good luck

[WS6FirebirdTA00]

Are you CL? If so, then the o2s are going to correct back unless you change the swtich points. Also, be careful with timing, that will play a large role in it being emissions legal or not.