here's a set of BBC Olds heads angle milled to 12 degrees, on a 632 at 2450 lbs went 4.75 @ 146 2.45 1.900 5/16 stem titanium , Jesel rockers
1.7 exh 1.8 int also 1.7 intakes 10.2 deck height sheet metal CFE? intake for 2 dominators with linkage prior to my ownership on a 598 with spray these went 6.85@ 204 intake drilled for spray plugged now. i'm all motor die hard. I had a great idea got a new set of Pro-Filers from Steve Schmidt to replace these with intake hmmm 4.78 but it did go 150 made 1240 with these Olds heads hind sight is 20/20 i would have stuck with these and saved a lot of loot also have 2 sets of cast Dart valve covers one set polished one set not I;l include some extra intake and valve cover gaskets i have i can ship or meet within 150-200 miles Great bang for the buck