Carbed EA82 build

I am looking to rebuild my motor later this summer so I need to start tracking down parts an ideas.  I have a Weber 32/36 on it currently and want to stick with it for simplicity. I am in Wisconsin and none of the yards within 150 miles of me have any Subarus what so ever. So trying to find all the pieces need to convert to SPFI isn't going to happen.

My question is will dual port heads fit on my engine? Are cams/timing belts all the same?  I know the manifolds are different. I was thinking of building my own long runner manifold to gain more low end torque. Would look at modifying a spider manifold if I cam across one of them.

I also know that the SPFI engines have a little higher compression compared to carb. Is this from different pistons or something else?

Besides putting on a new exhaust any other suggestions to gain more power?

Don't even mention and EJ swap. I am not going that way with this car.  I will be buying a new Forester soon for my primary vehicle and the 87' GL will become my back up car.

Thanks in advance

Edited March 20, 201610 yr by nrwphoto