Noisy fuel tank baffle

[DanEC]

Curious question - I keep my ERA on roller dollies and push it into a corner of my garage. The baffle in the fuel tank has always made a lot of noise at the slightest movement of the car. When building the car I figured fuel in the tank would quiet it down - but I think fuel actually keeps the baffle rocking due to wave action and creates more noise. I can give the rear of the car a light sideways push on the rear tire and the fuel tank will clatter for some time - probably 5 or 6 seconds after I stop moving it. I'm not sure if I can hear it or not when driving. When the car is not warmed up hot, I hear something like a rattle from underneath at low speed but it seems to die out when the car is hot. I've yanked around and beat on everything possible with a mallet and can't find anything loose anywhere or duplicate any rattle except from the fuel tank. Even pulled the mufflers off and shook them around to check for a loose baffle.

Probably not many of your store your car on dollies and push it around much - but wondering if anyone had noticed a noisy fuel tank baffle? Probably will live with it - don't see much can be done to deal with it.