Ideal spacer sizes for an SC ?

[88911cs]

Hi Guys ,
I restored my Euro 911 SC a couple years back ( non sunroof / no air / roll down windows / one mirror in Pacific Blue ) and in the process bought new Fuchs 16 x7and 16 x 8 from the Porsche dealer ( a friend was the parts manager ) and am running stock 205/55 and 225/50 with the car on Bilstein greens and lowered to a little below euro specs . The front lips were rolled before paint and I've had no issues with street driving .The question I have is solely from a cosmetic perspective ; - the rear wheels have always looked slightly too inboard and I've determined I can go to 15mm spacers to bring me out to about flush with the upper edge of the wheel well . I was planning to change the studs to 66's from the stock 45's as well . My question pertains to the fronts - is there an '' ideal '' size spacer for the 7 x16 that will bring them out a little and not have any interference issues ? The front has never seemed to ''need'' the spacers as much , but maybe a 5mm would be just a small improvement ? I know these questions have been posed many times by people with 6's and 7's wanting to move outward , but 7's and 8's seem to be very common for the SC / Carrera body I'm sure there is a '' standard ' for this .
Thanks in advance ,
Bryan

[Discseven]

Bryan... there are thin spacers than can be sandwiched to achieve the added dimension wanted. Not sure what 5mm dimensional change per side will do to the car's steering geometry in terms of handling and effects on steering parts but know that the further out a front wheel is moved, the more unfavorable the consequences. Am not suggesting a negative here as in not to do this. Suggest getting more intel than I can offer.

[88911cs]

^
Thanks - the more I look at it the more inclined I am to leave the front as is . I think taking the rear out to flush with the 15's will have a nice staggered look .
Regards,
Bryan