what solid cam is equivalent to a hyd 268 ?

Let me run this by you guys >>>>>>>>>>>>
I may have access to a 68 318 . I believe that is a 9.2 compression flat top engine from the factory . What if I installed my closed chamber 920 heads and my big erson cam with 8* degrees advance in that 318 ? I read here that installing those 920 heads with a .028 head gaskets on a 318 would bump the compression up almost 1 point that would be somewhere close to 10.1 compression. and installed my ld340 and 650 dp with headers . what do you think of that combo? I have so many more option with a 318 or 340 engine than my 273 .
Or , if someone has a 340 short block or complete 340 , no 360's though. they want to sell close to wisconsin I may have to upgrade to that.
let me know what you have .