318 cam selection,,opinion

i am currently collecting parts,when available,, i may be swapping in a 318 and pulling out an old school 241 dodge red ram hemi from my street rod,,,

i have found a cam new for sale,,it is very close to a factory 273 4bbl cam,,

410/425 lift 248/256 duration 110 center line,,,any one know what the vacuum is like on this cam ? im currently running non power brakes,,but may change that some time as well,,,its a street rod,,power windows,,a/c...cruiser,. just looking for a little more low end/mid range,.not a tire fryer,,,and good mileage

stock 318 stock heads,, or is a stock 340 cam a better choice,,,any input would be great if you have run this cam,,thanks