Guys there are 3 different threads on this forum on Go engines and i'm getting !!!!!

I was a bit confused on what shims come with each engine and which you should use with each % nitro fuel.

I'm receiving my 3 port race on Saturday and i want to know what comes with the motor as standard like shims and what carb is in it?
Does it come with a plug?
For what nitro % is it set at...i'm running 25% tornado.

I also want to ask you about breaking in this engines.
The tornado fuel has 9% oil in it (7%synth+2% castor), should i use a different fuel with more oil since the pinch is too high?
As for break in procedure i warm the engine up with a hair tryer, cover the engine with al. foil and as soon as it fires up i run them on the ground no more than 50% bursts and as rich as i can to maintain 210F driving slowly in 8s. I do this for 5 minutes and then cool the engine down then again the same thing for a total of 5 tanks. Then i remove some foil and try to increase the time i go half throttle and increase the speed of the car a bit. At the 10th tank i remove the foil completely and run the car rich for the rest of the gallon not tuning for power.

Let me know!!