Low Compression pistons & Timing question

Just rebuilt my 02 Sentra 2.5. Installed 8:5:1 low compression pistons with K1 Rods to go with it. My question is now that my motor has these low comp pistons installed do I have to advance or retard the timing, or do anything to the timing for that matter? The reason I asked this is because my engine shuts off when warm. It just dies on me at lights. RPM's just drop and the engine cuts out. It always starts right up though. Im getting engine code P0011
"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1). I've replaced the Cam and Crank sensors with the new updated models. I replaced the Throttle Body with a Nissan remanufactured one, along with the top 02 sensor. I also replaced the MAF sensor. This part I got on Ebay. I did a compression test and Im getting 125PSI all the way across. I did have a valve job done as well. Im stumped. I had my mechanic double check the timing marks and they are to spec he says. Any thoughts on what could be causeing the engine to shut-off and the P0011 code we be great. Thanks!