I am a member of S.O.V.R.E.N. in the inland North West and there was a recent rule change to allow vintage race cars "Trans AM" up to 1972.
I was going over this sights page http://www.camaros.org/forum/index.php?topic=7850.0
which lists all of SCCA's ruling for the Trans Am series and I was not able to find anything prohibiting aluminum angle plug cylinder heads for the 72 season.
I am in the process of building a 1970 Camaro to 72 spec. I see from the rule book that I am able to change the differential to a 9" full floating differential, dry sump engine oil system, 6" "H" beam piston connecting rod and four wheel disc brake as long as I stay under 305ci and 3200 lbs.
I guess my main question is, can I run aluminum angle plug heads and still meet the rules to compete under SCCA era correct ruling ?
Any help would be highly appreciated