I just bought an '85 motor and trans from a wrecked GN. It is supposed to only have 30k on it. It has been sitting as the hoses are all dried up but the paper is still on the valve covers so I believe that the mileage is probably correct. What precautions or changes should I do before installing. I am planning on changing the water pump, oil pump (high volume), front cover gasket and seal. I am swapping the intake from my existing 85 GN (30# injectors and TA33c turbo), Lastly the down pipe, can a muffler shop make me a 2 1/2" pipe utlizing my flanges or who still handles the down pipes for '85s. I have Poston's headers also.