Carb CFM help

Any carb will run good on that 360 you have. I run a similar motor in one of my cars and I use a 750 dp. My car has a bit more gear than yours but I think you will like the "instant on" power of the 750dp. The 3310 holley 750 vacuum secondary is a great carb and in a drag strip shoot out it would probably beat the dp, but on the street with a street tire it will feel soggy/undercarbed. This is due to having to wait for the secondaries to open (even with the lightest spring in it) and not having a secondary accelerator pump. A 650 dp will be very snappy and have really good throttle response, but you will give up hp pretty much across the board. If you have multiple carbs to play with then try a few. I dont think any one of them would be a wrong choice. You just have to decide which one suits you best. Good luck and enjoy.