Comp cams xe268h for 318

I would not use any hyd comp cam smaller than the XE275HL all the shorter ones have low lift for the duration , or too much duration for the lift/ area under the curve
unfortunately comp makes NO cams suitable for what you need unless you go solid lifter and then maybe
start with Lunati Voodoo or a Howard with a footnote 15
or
since it looks like you are really lost get a hold of RAcer Brown Cams and do whaterver they tell you
forget all the bulk manufactured one size fits all cams- they are well made and cheap but you do not get the performance you are paying for (like the summit brand cheepies)
that 204-214 grind has to be 50 years old
and you do NOT need 10 degrees extra exhaust with a late head with the better exhaust port
sheeeez