[bandit86]

I won't remove spark plugs, the engine would still suck and blow through that hole

I removed the injector wire for every other cylinder in the firing order not just random ones.

I also disconnected the o2 sensor so the computer will not try to take readings and rich up the mixture for the 4 running cylinders.

engines are internall balanced, I dont see why vibrations would be a problem, look at harley engines they shake, ratle and roll. compressing and not firing in a cylinder still puts a load on the crankshaft