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
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