The 800 Thunder is a better choice than the 750 assuming your engine can handle the flow.

Remember, we're not talking about a RACE engine or even much of a hot rod. He stated the car was a cruiser. The smaller carb will give excellent response and good performance.

As for the 750DP? I'm not a racer and have no use for those carbs. I've had my share of them and even built one around a ProForm body. It went down the road and I moved back to the AFB.