Sashi, its pretty easy to remove the surge tank and its bracket to give you a little more room to work. Compounding the error in repairing will likely require removing the head to fix it. This sometimes happens in trying to remove & replace a spark plug, too.
The bracket it tack-welded to the inner fender panel. By cutting the tack weld, the whole ass'y can be moved out of the way. Reattach using a pair of large self-tapping screws through the two parts in a convenient (or the same) location. Good luck.