Best heads for these rules??

[highflyer924]

Engine: 360 Max C.I.D. No stroker combinations allowed. Flat top pistons only. No performance parts of any kind allowed. Cast iron OEM heads only, no vortec, no double humps. no late model center bolts heads, no small chamber. No Crate motors allowed. Head combustion chamber can be no smaller than 72 cc. Factory OEM performance heads are not allowed. 3/8 screw in studs and guide plates allowed. No porting, polishing, milling, or altering of combustion chambers of any kind. Smooth idle cams only. Cams must pull 16” of vacuum at 800 rpms and have a maximum cam lift of .450 at the rocker arm. Hyd cams only, no hyd roller cams.Cast iron intake with 600 cfm carb. 1-5/8 headers

[turtle1hp]

Brezezinski is a good source for that information. This is from their website."We have been working with the Chevy “Open Chamber” heads for years. If your rules require the use of “open chamber” heads, the ‘441, ‘487 & ‘993 heads work the best. While these heads are not available new from Chevrolet we have a good supply. We can also modify your open chamber heads."

[Krooser]

The 993's are popular here in classes where the 487's are not. Can u run an EQ stock replacement head?

[MM90]

I would say run a Ford but if they are strict on the 72CC rule then you could only run a Cleveland.