No problem about the info gents, I kind of mess the engine plant (Tonawanda BTW Jeff).
I have a second engine available for 250$ and I’ve kicked around the idea of boring it out but backed away from that do to what I consider the risk of taking the casting to thin walled and potentially causing leaks. I’m looking forward to a lot of other options with it that will add the pop we all crave but not at reduced reliability.
BTW MG_Bizzle, you can impregnate casting with a sealant that will close up porosity. I only no of this being done at casting facility but who knows with a little research there may be someone smaller who does it. The UK as I understand it has some pretty good foundries. Hopefully you won’t need it. Good luck.
Cheers,
Tim