It's always a give and take thing when street driving is involved. Personally, I'd run more cam (lift and dur) with those heads, if it's a roller. If it isn't, I'd definitely invest in one. Roller cams are much easier to live with, when large amts of lift/dur are considered. That's a whack of head for that bore. I doubt you'll get the full flow advantage with that diameter cylinder. All that being said, it will be a handful.............