And there is no replacement for a decent head. Which the non-VTEC B series engines don't have. You can mod whatever you want, but you'll still be hobbled by that head design unless you put some serious work into it. I don't care if you want to be the anti-hero by not doing a VTEC head swap, that's fine and all, but there are very solid reasons to swap the head. You'll need some valves, port work, and chamber work to go along with those cams, just to get to the same perfomance point where a non-modified VTEC head starts. An engine is just a complicated air pump, and if you aren't able to get the air in and out, you have nothing.