I think our visiting guest summed it up nicely.
Potentially, I agree. But I don't remember ever seeing Goku eat at... fighting speed, I guess. Even then, I don't get the feeling that his chewing speed could keep up
Although, I still don't really know how much Blob can eat, so I'm not entirely sure Goku can win.
Not at "fighting speeds" but Goku has show to eat several plates in a few seconds per stack. He's got the speed, the stomach space, and the high motabolism to put down the blob