Go big or??? Pump sizing

[Rodknock]

Running a Tanks Inc. tank in my 69 Camaro. Getting ready to purchase a fuel pump module for it.
I'm wanting to just purchase the largest unit they have, for future HP capability.

Question I have is, would there be issues running a large pump (PWM) at lower HP levels initially?

I'll be running a 6.0L twin turbo setup eventually (750 HP max), but am thinking about running it N/A for a while, just to get the car running. Don't really want to buy a smaller pump now, then spend $$ on a Larger one later, unless it will be an issue.

Here's the unit I'm looking at.

https://www.tanksinc.com/index.cfm?p...d=61&mode=prod

Also if, there is something better (there always is) I'm open to suggestions.

Thanks!!