intake needs cutting how to measure

Earth mover,..If you place the manifold on the heads WITHOUT the gaskets it will usually be very close. You can then measure the gasket thickness with a caliper. If the manifold still doesnt fit , you can cut strips of thin cardboard like soda cartons ect. and slide under manifold at the corners to simulate gasket thicknesses. When you find the thickness that lines up the best, have the manifold milled HALF of what that measurement is. This will allow for compression of the gaskets when torqued down. try to sneek up on this,..you can always have it milled again. A little hard to put it back after it has been removed. A little work and time consuming but it works every time for me.

Terry