The guy who built my engine told me that it is too tight and he is having to take it out of the car and see why. Is there a such thing as the LT one being too tight or is it something that's being overlooked? I do have the reduced drive starter and a 12v battery. The opti is good too, new wires and plugs too. The engine is spinning but its not cranking up. Any ideas on what could have causes this?