cam question

To answer the question, yes you will need springs, not sure how big the boss is on those...but everything on that head is tiny (I can't even get my fingers in the intake ports), so, I would plan on having to work on it.

JMO, but that cam in a 318 with 302's will probably be a dog at low RPM, and not much better up top. Those heads are ok on stock motors, but they just don't flow (hence they don't like much cam)...and again, in my opinion are not worth putting ANY money into for performance gains.