24.7 tuning
Start the engine, and pinch the fuel line right in front of the inlet niple. If it speeds up in less then 3 seconds richen the LS needle 1 turn. If it speeds up in more then 3 seconds lean the LS needle 1 turn. The bottom end of this engine should be snappy and very strong, if its not your LS needle is out of wack and youll need to do one of the 2 things above!!