Precisely. Go have some fun and spend some money. You didn't really need the money anyway.
The basic power increasing principle is, an engine is a kind of air pump. So, to make more power, one has to flow more air. The old saying is that there is no substitute for cubic inches. You'll be wanting those, and you'll be wanting to port and relieve the block, and you'll be wanting bigger valves. I haven't looked into what is available for replacement valves, but I suspect those would have to be custom fabricated. Also not sure what the limits to size increases are. Supercharging starts to make a lot of sense very quickly. You're likely limited to 10 pounds of boost without o-ringing the block, and you'll be in the head gasket fabrication business if you do that, I suspect. There's an article out there somewhere about a guy who was fitting a pair of IIRC Mopar 4.7L right side heads to a Packard block to convert it to SOHC operation.
And you can't o-ring a relieved block, it dawns on me.
This guy's book helped me more than any other about the theory of getting the most bang for your petro dollars:
https://www.cartechbooks.com/products/david-vizards-how-to-build-horsepower?variant=34828555911213This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=243285