Without measuring that 194 head and doing the math, it seems like the LPG pistons would bring a 292 well above 9.5:1 CR.
I used the LPG pistons, and 292 head with 1.50/1.94, 3 angle and lite blending. I used that 194/204 cam with new stock valve springs.
My '67 3/4 4spd weights 4600 LB empty. The week after I got it running, I changed the 4.56 gears to 3.54s. That really woke it up. It runs down the road at 75 with no effort, but it's still just a truck, not a race car. It starts pulling really strong at 1500-1600 rpm and that's what I wanted. I wanted it to run under 3,000 and I'm happy with the results.
