When I converted the 1302 to 944 spindles, I used the 944 struts that came with them (ebay auction from a salvage yard

) . I had some serious positive camber, even with the control arms adjusted all the way in, AND the 944 struts' eccentric adjusters all the way in. 215/40ZR17's on 17x7.5 ET55 Cup 3 alloys were stickin' out about 1 inch on either side.
I had to grind some metal off the spindles to work with the 1302's geometry.
I took metal off where the spindle is closest to the strut tube, as this was the interferance that was limiting me from getting negative camber.
I'd never tried with late 1303 struts, so I don't know if you had the same camber problems I had. My tapered springs are really close to the tires, and at about -1.5 degree static camber on both sides. The tires are about 3/8" from the fender edges.
Look at your car from the front and see if the front tires do this: | xxx | or this: \ xxx / with the vertical lines representin' the wheels. See if you have too much positive camber.
Yetibone