What F-150 manifold is on it? Depending on what you have, it may be a-lot better than the stock manifold. I would figure out the vacuum lines first. I know quite a few people that use the truck intakes with great results. Not sure what you are doing with the car, but the ones I know that are or were using the truck intake have had great results and have only changed to go to something aftermarket for even better flow for drag racing.