Performance timing

You installed a 292/112 cam into a 9.1Scr ,318 ?... I'll be interested to see how this works out. Have you done a compression test?

Your idle timing is ballparked at 292x.05 plus 2=17. But with an automatic and a high-stall, it doesn't much matter. What does matter is that you get the the transfer slot exposure underneath the butterflies set right. That cam in my 367 liked the exposure set to a lil taller than wide but not as high as 50%taller, I'll guess at 30-40%. Then I set the idle-speed with timing. Mine was a stick car so 800. With an auto, you might be looking at 650/700 in gear/ and 100 to 150 more in Park/Neutral. If your combo won't come in there, you probably have too much timing.
To run the 108LSA version of that cam in my 367 at 11.3Scr,and to get the transfers set up right (750DP), I had to drill one hole in each primary butterfly, up near the idle discharge ports, and about 1/4 " from the edge. The hole size ended up at 7/32 . It's easy to get carried away and drill too big; be forewarned.
The secondaries, I closed up tight but not sticking. It ran a jobber PCV. That cam , after the power-timing was set, liked lots and lots of Vacuum advance and in as fast and hard as I could bring it. I modded the Vcan to get 22*. Cruise timing was 50* at 2800rpm.... but it liked a lot more; 50* was all I could give it with the factory parts. I ran it at 207*F and fresh cold air sealed to the carb.
your requirements may vary.

by the math, I get
292/292/112+4/68 overlap(60 effective)/106 compression/98 exhaust, Ica of 74*