Best motor for 69 Barracuda

I second what Rob says about a Magnum 360. If you wanna keep it simple bolt on a carb intake, get an adapter for the fuel pump eccentric and run a mechanical fuel pump. The 360 is superior to the 340 due to the longer stroke. Longer stroke means more torque. The Magnum 360 already has a roller cam and good heads (check them for cracks). Freshen one of those engines up put a little cam in it and you can make 400 hp easy.