mups53:

I have used the Perry VP30 in the past. I found it worked better if I used it with a "Pump rated" carb rather than a standard (non air-bleed) carb. Standard carbs seemed to run rich in the mid-range. The best installation I had was a VP30 AND a Perry Pump Carb on a Fox .74 in a Balsa USA Enforcer (Delta Wing) pusher. The tank was mounted so that the vent/fuel nipples pointed away from the engine. This made for rather long fuel lines. Sometimes getting the pump and carb adjusted can be a pain but once the pump is set it tends to stay set.

You might also consider a Cline Regulator. This is a demand device that uses a check valve in the muffler pressure line to pressurize the fuel tank. It works with any type of carb. You don't have to drill/tap the crankcase. It never needs adjustment and Cline provides a "repair kit" if you ever need to fix it. Another thing I like about the Cline is that when the engine is not running NO FUEL passes through the regulator to the engine.

Last time I checked the Cline was about $50.00 and the VP30 was about $38.00.

I prefer the Cline myself but I have never used it in place of the VP30 AND a Pump Carb. I think it would work regardless of the carb since whatl the regulator does is "see" the demand from the engine and feed it.

Just my experience and opinion.

As "they" say - your mileage may vary.

Dan