340 Camshaft
I have a 69 Barracuda with a 340, 4 Speed and a 3.55 Sure Grip and headers. About 12 years ago, I added an Edelbrock Air Gap, 750 CFM carb and a Comp XE268 cam kit (cam, lifters springs). It is an awesome cam. It sounds great and has lots of power. I can melt the rear tires. This combo is good for 375 HP. If you want more power, look into the Comp XE272. It's a little more aggressive and will give you more power.