Are the ign. parts stock replacements?? if HC is the only gas that's high it is caused most likely by an incomplete or a noncombustion condition. I would start at the ignition system first. You said you replaced it all already which is good but I doubt they are factory parts. I know wires are in the 50-80 dollars range alone. I wouldn't use anything not factory if you have an HC problem. If they are not factory I would put factory parts on first. I would also do a baseline compression check wet/dry to make sure the engine's not at fault for your problem. You might have a half dead cyl. and not notice it causing the incomplete combustion that's raising the HC's.
If those parts are factory and your compression reading are ok I would make sure the ignition system isn't breaking down under a loaded condition. You could have an ignition coil that's breaking down and not giving producing full power for your plugs under a load. The point is it could be something in the ign. system that's breaking down when it's stressed under a load. I would check the o2 sensor after the ignition to make sure it's switching correctly and not "baising" to one side or the other. You will need a scope to check these things correctly. Maybe you should take it to the Acura dealership and let someone who works on these cars day in and day out diagnose it correctly for you. At least then the technician can test the car in manual mode on the smog machine and see the numbers before and after. It's shitty running back and forth between shops and smog stations trying to get your car fixed. If your car is newer Acura/Honda it has an emissions warrenty that is seperate from the regular warrenty that covers certain emissions related parts. You would have to call with your vin number to get exact details of this.
Anyways, hope you find your problem.