The 292 cylinder head is really not any better than a 194 cyl head..Stock for stock.
Don't listen to that advice.
You would not be able to shave a 230,250,292(all the same,,,BTW) cyl head to match the same volume as the 194 cyl head.
Even if you could,,, the 230,250,292 head would be too thin.
So,, do not swap heads.
MBHD