This is the recommended gasket for the head, but the afr website says " do not gasket match your intake to this gasket for it does not exactly fit the heads intake port". Heres my delima, I have ordered the 180's for a 350 I've got, but they will not be shipped for 4-6 weeks. In the meantime I want to port the stock tpi (gotta use it for a while, not gonna waste money on tpi parts though) and be ready to bolt everything up when the heads get here. Does anyone know where I could get a template of the 180's port entry?