1967 273 cam suggestions

The op still hasn't given us any specifics on the engine other than it is a low mile original. 67 could have a 10.5/1 in it which would be a good thing. Depending on which 318 heads are on it the compression could be in the 9's and with that info the right cam would be easier to pick. If the 273 started out as a low compression 2 barrel and someone added open chambered 318 heads, the compression could be down in the lower 8.0 range
(or even in the 7's) and picking the right cam will be quite a chore. We also don't know if he has a solid or hydraulic in there now. If the OP contacts a cam company for their recommendation he will need to know all those variables. If we suggest a cam for him we are simply guessing. Way too many unknown variables!