Yeah, he will, but expect no miracles. You still have the same core issue as before that the heads and cam are going to hold you back significantly. Not only because they don't flow well but because you're still dealing with a dismal 8.5:1 compression ratio. If you have to choose between changing the cam and changing the heads you will want better heads first. Nothing exotic- the E-street heads or something similar but with 64cc chambers will raise compression into the mid 9s as well as provide significantly better flow. You wouldn't believe the difference the compression change alone makes. The torque curve gets a lot beefier. Plus you then have enough cylinder pressure to support a moderate performance cam if you want to add one later. You wouldn't need a dyno to know it's gonna get from point A to point B significantly faster. And if you're gonna be taking the intake off anyway it's sort of a perfect time to swap the heads!