I actually cut out my entire windshield, people were telling me it would be too weak and it would break the first time I crash, etc. I've flipped this truck 20+ times and the only thing I've done to the body is messed up the rear body mount holes just a tiny bit.

Hmm, it almost sounds like your LSN might be too lean, how long does it idle high before dropping back down into it's normal idle level? It should be at least 5 seconds minimum.. Also similar goes for pinching the fuel line at the carb to shut it off, if it takes more then 5 seconds to die the LSN is too rich.

You'll get it dialed in, it just takes a few tanks of fuel to do it.