You are looking at things in the wrong perspective. Think about it, you can get a stock k20a2 swap on hmotors for $4k. I would rather spend the money on a stock swap then building a inferior motor when it comes to all motor. I had a stock k20a2 swap in my eg and with a street fuel tune it made 202whp and made 115ft.lbs of torque @ 2k rpms. With the 6 speed tranny I guarantee that that car could outrun a build B series or H series. The best part about it, I could beat the shit out of it b/c it was a completely stock honda engine. I would not waste your time building a H series for all motor, they make their power from displacement. The H series engines are just big and I dont really want to cut shit off a car unless its going to be worth it and to me a H series motor isnt worth it. Yes you can make power out of them but its going to take a lot more than you think. All motor go K, boosted got B.