[1989_351W]

I think I wasted my money. I bought a 351W lower intake but my upper will not fit. Did I get the wrong one? If so, which lower intake can I use. I am on a limited budget and would like to buy used one from a junk yard or such. I don't want to buy one new but if I have to I just want to buy the lower if possible. Please hel p I am starting to lose interest in this car.