Thinking about new heads for my classic stockcar. Current heads are production 360 units with very minimal work. Valve tips vary about .100 in height and instead of freshening them up i'd replace them. Rules say they must be iron. no mention of valve size or porting in the rules so anything goes I guess. Motor is low compression 360 with Hughes whiplash cam and its very competitive when the tracks are less then perfect. I turn the motor 6,000 rpm at most. Thinking a set of EQ's. Any other thoughts? W2 would be nice but we have a intake height rule and I'm not sure budget would allow them anyway.