im about to pick up an hf. im told it has an 8 valve head, and theres really nothing i can do to pull any power out of it. i had a civic a bit ago, a dx and i thought they were the same motor.i thought the hf just had ridiculously long ratios in the trans. could a 16v head swap onto the block because the car doesnt have all that many miles. i believe its a 1.5l. just wondering what my options are. this is my first post, i tried searching but couldnt find anything. thanks