this may be a stupid question

Keep your eyes on E-bag and the for sale sections on the Mopar boards. Clifford and even some original H-Paks turn up every now and then. I have bought 2 Cliffords off the Internet and sold 1.

Reality is that an H-Pak is not a very user friendly intake for a street car, and not even a very good race intake on a 225.

For a true street car an Offy is the best answer.