The Perry VP-30 is a great pump. It pumps lots of fuel at a pretty good pressure. You could use one Perry pumps for two engines, and it would work great, and not cost you a huge amount of money. The Perry VP-30 puts out to much pressure for most engines, and that is why lots of people have problems with them. I made the same mistake and could not get my engine to run until I added a return line to the tank as per the diagram below:

Once I put a return line as per the diagram below, my Saito ran PERFECT at all speeds.