Can you feel the difference?

Well when I bought the car it came with the comp cam 1.6RR's. money is kind of a deal right now, college is in the way. also I have another crankshaft that the car came with, it has the (FORD) oval on it. I think it's just a plain ol' cast crank. I can get full Mac exhaust for about $1,000. Long tubes, HiFlo Cats, Cat Back. I Also have some solid steel motor mounts good idea or bad?