drill it and port it

[Hondaman1984]

why do you have to drill and port out a mani to turbo a cb7?

[EJX_Michael]

I think all you really have to do is Drill an oil return line hole in the oil pan, and dremel out the injector holes to fit 450cc injectors. Don't quote me on this though.
http://www.cb7tuner.com/vbb/showthread.php?t=17090
Also there is a turbo sub forum... http://www.cb7tuner.com/vbb/forumdisplay.php?f=62

[mickey_601]

you have to redrill the mani cause the exhaust studs wont line up with a dsm mani and porting will help reduce boost creep if im not mistaken but its not a must.