Guess my hp

[70SS396]

My 1970 Chevelle SS has a 396 with the following specs. People keep asking me how much horsepower she makes? I just bought the car in August and don't know. What would you estimate it at?

-396 bored .070 over
-9.7:1 compression ratio
-rectangular port matched 990 heads
-Speed Pro forged aluminum pistons
-Comp Cams XR276HR cam, 224/230 duration @ .050 lift, .51/.51 lift, 110 degree lobe seperation
-Edelbrock Performer RPM intake
-Hooker 2" primary headers
-Edelbrock 1806 650cfm carb

Also, do you think the carb might be too small for the engine? I was thinking a 750-850 cfm would be more appropriate.

Thanks,
Mike