I've search and all I see are 12a turbo conversion and t2 swaps. To turbo the gsl-se 13b engine can I do the what the 12a guys are doing and just oval the bolt hole on the t2 manifold to make it fit. What will I have to do to the wiring harness and ecu to get this to work right.

 

I guess I'll answer your question. The reason why the 12a guys are ovalling the holes is because the T2 manifold is from a 13B which is longer than the 12A. You don't have to do that since you have a GSL-SE. But, the manifold will still not work because of the turbo hitting the intake manifold and a center black that the GSL-SE motors have.

I suggest you go to

http://www.winisp.net/gsl%2Dse/
and
http://www.turbofb.com/

and read everything there.