I can come up with a good con... horrible bang/buck ratio. You're not going to get 150hp from simple bolt-ons with a d16z6. I'd save the money (and sell the parts you already have, except maybe the exhaust), and piece together a turbo system. You'll get something closer to 60-70hp rather than the maybe 15hp (if you're lucky) you're looking at with the bolt-ons and head decking.