ok i got a pair of C3AE-6090C, 3E8 & 3E15 heads coming, i take it these heads are identical to the 406 heads with the exception of spring seat cups because they are early date heads.
so i take that they have 56.4-61.0 cc.chambers and 2.02 intake and 1.66 exhaust valves with 2.34 x1.34 intake ports.
so help me out here if im wrong on my info,,thanks