Adding auxiliary fuel tank to Briggs engine?

[bikerider]

In doing some more research I have a couple more questions about this proposed setup. Specifically, the pulse fuel pump. I would like the pulse line for the pump to be connected in between the carb and intake port vs. somewhere in the block for the sake of no oil getting into the pump. The first picture I have attached only shows the location I would like to use for the pulse line. (This pictured engine has a full intake manifold. My stock 6.5hp does not.) The second picture shows what I would like to build (Given I can find a chunk of aluminum and the appropriate fitting for the pulse line) to mount in between the carb and intake port. The third picture shows an adapter made from a pvc cap and a cone air filter. This I am considering doing.

Because I have no experience with pulse fuel pumps other than what I read, I would like to know if I do decide to go with a cone air filter like pictured over the stock airbox, can I install the fitting for the pulse line into the pvc adapter for the cone filter?

 

[bikerider]

Pulse fuel pump for external fuel tank?

I am looking for a pulse fuel pump for my setup. It is an outboard motor lower end with a Briggs and Stratton 6.5hp engine as the power head. (See picture) I want the setup to be very similar to the picture of the mud motor shown below. The original attached Briggs fuel tank will be removed off of my engine (contrary to the picture) so my only fuel tank will be an external 3 gallon tank. I found these two pulse fuel pumps on amazon.
https://www.amazon.com/Briggs-Strat...07776MP6H/ref=cm_cr_arp_d_product_top?ie=UTF8

https://www.amazon.com/Briggs-Strat...&sr=8-3&keywords=pulse+fuel+pump+small+engine

My question is; is there a specific rating I should be looking for when buying a pulse pump? I did not see any on either page. Or is it more of a universal thing, any pump will work?