No kidding the stock 360 2bbl cam really wakes up a 318. I was doing a budget /6 to 318 swap on a D100 4spd o/d truck and wanted a little pep. Put a mid '80s 318 in there with a $30 new TRW cam on clearance at Barnett Racing, I think it was 252* .410" 109LSA. Even the old Direct Connection "bible" says that's a good upgrade over the 248* .390" 113LSA (?) stock 318 stick. With a '69 Dart 2bbl Carter and headers, it was a high/mid 9 second truck in the 1/8mi, otherwise bone stock with 3.55 SG gears and a LuK clutch!