340 cam for 318

If you’ll go halves;). That’s not going to be in the budget. I’ll have the shop take the block to 9.58 and square, been reading through the head porting thread, pretty similar to SBC heads, a few more things to remove, but easy enough and is basically no cost.
I wont take it as far as to where I thing the fella took it though.
Yeah that comment was sort of a "If i had the time and inclination" based off what I know about the 318 and 340, that would be what I'd attack to try and get close to what the 340 is. main thing to me is compression and heads to be able to get it to "rev to 6000 RPM all day long" that comment was was the advertisement on the 69 and 70 340 Swinger LOL!
but yes when you really get into it it gets expensive with 318s this is why guys will always say "get a 360" you have the bore for the big valves and the heads etc. a 318 is ok if you have realistic expectations, its a fun V8 to run.