issue with AMD Demon floor pan..please help newbie

Wow 1/8th'' is nothing to worry about!! your pic's look like it's 3'' lol. If ya have it that close plug weld your x members then you can massage your trany hump to fit,If everything else fits tight start welding!!!

oh ok, lol you got me worried there.. maybe u can answer a question i have, why dont they weld the sides of the hump?