Best Top 10 Bolt Ons For a 318

67Dart273 said
A lot can be changed with a mild cam, dual exhaust maybe headers, some sort of 4bbl AKA 360 spread bore intake is cheap, and recurve the dist. Then get on gearing and stall, suspension, tires, etc

67Dart273 said
No that ain't true. Sorry. You might be right about economy, but a 360 changes a LOT of things

Economy???

My dad had a 76 Charger with a stock 360 2 bbl that got 20 mpg on the highway... 360's can get good economy if you build them right....