WALBRO Pump for Carbureted System??

I'm using this regulator and have had no issues..................

http://www.summitracing.com/parts/pfs-10653/overview/
(3 in/out ports, 1 return port, gauge port)

but I know a couple guys who have tried this one as a cheaper alternative with good results.

http://www.summitracing.com/parts/mrg-2015/overview/
(2 in/out ports, 1 return port)


The only thing is that it doesn't have a gauge port, but a simple 3/8" to 1/8" npt reducer would allow a screw-in gauge to be installed.

http://www.summitracing.com/parts/fra-491203-bl/overview/