The ports in my TF heads are not symmetrical with the bolt holes. The LH pair of ports is shifted over a little more than the RH pair of ports. Or perhaps the bolt is drilled in the wrong location. Hard to tell without having some sort of fixed datum to measure everything from.

None of the intake gaskets that I have on hand fit properly. I've tried several different mfgs. It isn't a huge problem, most folks probably won't even notice but I've been trying to get the port alignment "perfect" and so I keep futzing with it.