V10 Mega gassifier

I would like some reviews and and critiques of my gassifier up to this point. After reading the book it mentions that the V10 would over heat the steel and it was limited to slow, slow speeds. I am building mine out of a 200lbs propane tanks instead of of trash cans. Using 308 stainless steel for fire tube with brake drum as the bottom. encased in 175lb propane tank and then encased again for the outside with a 200lbs tank. hope the pictures upload. Please recommendations and suggestions are wanted.