engine flooding

[Eggdrop]

So i got around to looking over my problem. I replaced the Maf. I put in a new o2 sensor. I put new spark plugs. Car started up. After like 12 min of it idling and reving a bit, it stalled. its idle dropped and eventually dropped all the way down. I have a walbro 255 in there and i am starting to think its the reason for all the enging flooding. me and my cousin had to pinch the line for it to start up. Now, i have a walbro installed but i am running the stock regulator. can this be my problem?

[smithers584]

what kind of motor and what set up? if you are tuning it differently or trying to demand more fuel than before it could be a problem, but its fine to upgrade the pump and leave the stock reg.

[Eggdrop]

its a redtop. pretty stock so far. i just have the walbro in it but so much fuel comes and it floods out. i got the car turned on by pinching the fuel line a couple of times. also i put in new plugs and it startedd right away, but then those got fuel soaked also.