Took me 2 Hours and 2 beers....
You can still use the same gaskets 3-4 times...
Clean the gaskets, and all the holes, then if you have a baby, you should have a brush to clean the baby bottles, so don't tell your wife and use it to clean the inside of the manifold
It can take you 2-3 cans of cleaner, and a good arm! When everything is finish, you start your can with the gaz pedal on the floor, and make the car iddle High until the black smoke is gone... And ENJOY!