Well im taking my 2valve and swapping over to a 4v. I will probably be using,96-98 cobra cams, heads, and intake. I have 94 mk 8 valve covers and imrc's that appear to work off of vacuum, should I use these or make deletes out of them? Also im not sure what i can do with the fuel rails, will my 96 2v rails work? I plan to use my 2v coil pack set up which i dont thinks should be a problem. All this is going on top of a stroker 4.6 with a set of long tube, what kind of power should i expect and is there any other things i should be aware of?