Engine surges and runs out of gas

[jorgeinmiami]

Went out today by myself to try out the new Garmin and it works great and reads at a fast speed.

Now the engine is still doing the same thing. Starts and idles fine, get up on a plane and runs great.
A minute or two the engines bending to surge and runs down like it's out of gas. Checked the bulb and it was flat. Tried to pump it but being alone it's tough to do. I recently changed the favor filter and the filter in the VST. I'm running fresh Rec90 and added ring free plus so I don't think the gas is the issue.

Plan on getting a external gas tank and running it off there to see what happens.

Any other ideas ????