this might not quite be the right place for it-but since we're talking parts here, I'll share this.
Last nite, I dodged a big bullet. I installed a Mr. Gasket fuel press. regulator in the fuel line going to the Subaru's Weber carb 2 yrs.ago. On advice of many Weber carb. related info websites, just to control the fuel press. Last nite,I drove to a nearby gas station, latest batch of MPG Remedy at the ready for a fillup. I went into station, paid for the gas, came back out and saw a leak under the engine compart. Investigated, discovered the Mr. Gasket regulator was leaking fuel across the top of the engine. It easily could have become a fire, especially if it had let go on the freeway. Seems the diaphragm had failed. Long story short, I fixed it on the spot, removing the regulator and re-splicing the fuel line together. My buddy Jake who gave me a ride from station to home and back for the fix, said he had a similar failure w/ one of these years ago as well.
I admit I bought this one due to price, and the fact it was on the rack at the nearest parts store

So if you have a carburetor, DON't use the Mr. Gasket pressure regulator!
Tracy G