I'm swapping a 13b from a 84 gsl-se into a 85 gsl and need some help since I'm new to rotaries and a task of this size. Can I use the 12a's driver side wiring harness on the gsl-se 13b? If not, what is the easiest way to disconnect the driver side engine harness from the gsl-se since there are connectors everywhere under the dash and how does the dash come off? I have a Haynes manual but it seems very insufficient in explaining how to remove the dash among other things. Will the gsl fuel lines handle the increased pressure of the fuel injected pump? Plus, what parts can be interchanged between the 12a and the 13b? Also, what are some good sites to explain or a walk-through on swapping a 12a out for a 13b? And how do you get the damn pilot bearing out without buying a pilot bearing remover?