Star toilet

good morning,
I have a tank on a 'star' = 'cheap', I'm guessing, toilet. when i put the tank onto the bowl, the threads on the fill valve sit right up against the hole on the bowl, no room to screw on the water feed.
bought the toilet in '05, don't ask, it's been an ordeal. the store now only sells the white, not almond, they had said to bring in the tank & they would change it out. The bowl is well seated and at this point, i thought i might be able to dremmel a quarter inch off the left hand side off the hole in the bowl.
Thanx for any advise.

First reaction is to ask what were you smoking! You bought a toilet tank that didn't come with fill and flush assembled inside?

The only tool I recommend using is a sledge hammer. I would not even consider using a grinder on a porcelain tank. You won't believe the water bill if a tank cracks open while you are out for the weekend!

tank

IF quality control was that bad when the tank was made, what else is going to be wrong with it once you get it installed? If it was cheap enough, chalk it up as a lesson learned and scrap it.