I have always heard that Walbro's are the best thing around, but I've also heard a few people here and there saying that they get faulty ones. I'm having problems and want to eliminate my possiblities of it being broken.

Currently, I'm just getting enough fuel to run an n/a setup. But when I get on the boost, I run extremely lean. I can richen the SAFC all the way to +50% with 470cc's and still run 17:1+ lean. I know I'm not putting down 500hp on 5psi. lol

So is it possible for the Walbro to still run but have a degenerate decrease in pressure?

 

i have a walbro and i hate it... it starts to cut out at half a tank..my car is running lean right now to,, its going to get tunned..

 

Half a tank? Did you use the same style filter as your stock one? I had that problem too where I wasn't getting to the bottom of the tank. The problem was because the filter that they gave me turned to face upwards, so it wasn't grabbing fuel from the bottom of the tank. I put my stock screen back on to fix it.