CAM problem

1971 Holden HQ 71 cam problem
sir; I have have a 71 hq holden that we have put a vk holden carby engine that has been going well, now my trouble is, after an engine freshen up and cam change [crow cam part no.35626, mechanical/solid type profile] the thing won't start. It turns over ok, tapet adjustments ok, fuel ok, carbys ok cam and crank timeing marks set right [dot to dot] but I feel its somthing to do with the ignition timeing. I've been setting no/1 cylinder on t.D.S and dropping in the dissy also set at no/1 spark plug yet it's a no go; I believe it is to do with the way im maybe setting the crank timeing marks wrong nothing else has changed, and nothing is hitting or binding.[More cam detiles; inlet opens.32 b.T.D.C closes.66 dur.278. Exhaust opens.72 b.B.D.C b.B.D.S closes.30 dur.282. Inlet lobe lift at t.D.C on overlap.085; what am I doing wrong please. Hal