67 with a bone stock 283

[allens4876]

Im thinking about doing some mods to my motor. Its a bone stock 287 with a street fire HEI distributor and hedman headers, stock Rochester 2 barrel carb. i think id like to put a cam in it to make it sound better. any suggestions on cam? will i need new heads? will i need any machine work done to the motor? im not trying to get extreme with it, cause the motor only has 50k original miles!

any suggestions are greatly appreciated!