questions about aeromotive a-1000 pump lines

[yamadog]

Fella's- I'm starting to plumb my fuel system in my 67 Camaro. I'm using the A-1000 pump, aeromotive filter, and return style regulator on a carb'ed system. I am also using my stock gas tank with a RobbMc 1/2 inch pickup. I know the a-1000 is supposed to be run with -10 lines on the feed side and -8 on the return. Will there be any real problem running -8 on both sides, as this is the size of the pick up tube in the tank? I can go with -10 once off the pick up, but will it (the pick up tube itself) be a restricion? Thanks for any help. Jason