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Originally Posted by carcrazy
I'd give another vote for RobbMc....excellent products and support.
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The RobbMc pump is a really nice unit. I have one on my 500 HP street Pontiac engine and it's been flawless. Plus it can be rebuilt if ever needed. Great people to deal with too. Made in USA All that said, they are expensive and don't look exactly stock. If that matters to you, I would recommend bench testing any of the stock type replacement pumps before installing them. I place a 1' pipe over the arm and operate the pump with a hose in a 5 gallon can and the outlet going to a second catch can. Make sure the pump produces a nice full stroke of fuel on each stroke. Also check the arm and pin for slop, and play at the pivot point. They are all hit or miss. They are all Chinese junk as well. I have had numerous ones that would not pump fuel right out of the box. After putting a new one on the engine, I always fill the float bowl on the carb and run the engine with a pressure gauge dead headed on the carb feed line. If between 4-7 PSI, you can live with it in this test set-up. Over 7 PSI, that's too high and the float may not be able to control the pressure. Have had several that were in the 8-9 PSI range. That's too high.