Holley Street Dominator intake for Small Block

if you don't know how to look at the ports and tell, then look on the underside of the intake, if the part number is 300-7 then its the 273/318 port.
sounds like a pretty good deal. i'd like to have it, but i already have 6 intakes hangin' on the wall including 2 small port street dominators lol. , if it turns out to be a small port, then put that with the ad info, it'll most likely help you sell it quicker. good luck with your sale.