Best pump to upgrade to?

[USMC_Turbo6]

I want to change out the old pumps on my Red Armstrong DP due to not knowing how old they are. I want to know what is the best pumps to upgrade to?

 

[coach]

See if you can have Red test it.

 

[USMC_Turbo6]

The pumps are good and seem to work fine but just want to put new one in so I will know what I have. I'm upgrading my fuel system so I want to do it all at 1 time.