Nice, it looks good. I love my GO .21 5-Port too. I think it screams for the price you pay and the contingency program just makes it an awesome motor.
I think they already have a GO .28, Ive seen it saying that on one site, cant remember where, maybe the OFNA but not sure. GO to www.racefactorindustries.com and Im sure Russell will know. Or if you already know Massive Mods then Im sure he might know.
Oh, nice vids and pics.. that thing was GOing pretty good.