I am building a 700 Big Block engine to go into my 2010 Dragon RMK that I am also switching over to newer electronics, carbs, sensors, flywheel and harness off a 2004 800 RMK. My problem is the CDI I currently have is off a 800 VES engine and I am putting on 1997 Big Block Non-VES with 220 cylinders. So am I correct in looking at options I either need to purchase a CDI off a 2004-2005 700 engine or have the 2004 800 RMK CDI reflashed to match the original 1997 Big Block timing curves? I am open to any suggestions so please feel free to throw them out or PM me. THANKS!