Best 3/8 fuel pump solution?

The pump you linked above RF is a bit high on pressure for some carbs at 8.7psi max pressure. And the cheapest pumps on the market are made that way; I can't say this is one of them, but I am a bit leery of them for any performance use. A lot of the listings for these pumps say 120 GPH, but if you look on the Carter product data, they are listed as 25 GPH capable.

Mancini Racing sells a Carter M6902 pump for about $80-90 less than the M5902, and the specs look to be the same. The one difference that I know of is the M6902 is not shiney polished like the M5902. The M6902 shows out of stock at Mancini and Summit right now, but we bought one from Mancini about 1 month ago.