I ran the Arrow with stock shimming. I believe there were two. I never did like the carb and ran an OS carb on mine. If you see my at Speed Monkey, hit me up. I will help you get it tuned.
HELLO RFLECK I HAVE SOME QUESTIONS I HOPE YOU CAN HELP ME. I JUST STARTED RUNNING NITRO I HAVE ARROW GTR PLUS I TRY TO RUN AT SPEEDMONKEY AND INDY BUT SOMETHING ALWAYS WRONG WITH IT!! (1.) SHOULD BOTH SHIMS BE STILL IN (2). RE-11 PIPE OR JP-4 . THANKS JOHNNY 8172390716