[boyt911sc]

Michael,

Since you have dropped the engine and did the engine rebuild before, getting that engine out would not be a big problem to you. Some people like to do the removal/installation of the CIS unit in situ. But I prefer to do the removal/installation of the CIS unit with the engine on my test stand. Then test run the engine before putting it back. This way, I don't have to worry if there is a leak somewhere. The pressure test for air/vacuum leak takes only several minutes. It is easy to find an air leak but very difficult to pin point a vacuum leak source.

Engine drop...........................4 hours.
Engine install.........................6 hours.
CIS unit removal....................2 hours.
CIS unit install.......................4 hours.
Total...................................16 hours.

To fix/repair/test air box..........8 hours.

So you have to decide which direction to take. It is a choice you have to make. But the bottom line is that the air box has to come out first.

Tony