A little more info will help. Is this a street driven car or drag only? IMO the #10 is too big. #8 is all you need to the reg. then run #6 to the carb.
You can run the #10 since it's there, but it's just way more than you need.
About the pump. If you running on the street I'm not sure what the best is, but for the strip get a simple Areomotive pump will be fine.
http://aeromotiveinc.com/products-pa...l-pump-38-npt/
Do NOT get a Barry Grant pump. I assure you, you will regret it if you do.
If you drive it on the road the other guys will give you some better advise on that.