Yes, did all the spatter give it away? Haha.
All I've got is a small 110v but its been working well. I'm using Lincoln innershield NR-211 wire lately and really like it. I have been chamfering the steel on thicker pieces so I can get better penetration with it.
I've read that flux can be used with chromoly, though it's not the best option nor is it NHRA cert. The tubing has been slugged where possible and will have gussets and bracing where I've lengthened the frame so I believe it should be fine for me.
I welded areas of the a-arm supports back in and they seemed to weld just fine.