I have photoshop, but am not too good with it.

I want to know if there is any way to do any measurements or even ratios with it. I want to know what my Camino would look like with 17's and 20's. I've been thinking about seeing if I can import an image into one of my CAD programs, and work with something there, but it just sounds like a pain to even attempt...

So, any help is greatly appreciated...

thanks!

 

you can draw a circle or something at scale in CAD- then either distill it or make a new printer- pick adobe postscript level 1- then plot to file (it makes a .eps file) then import the .eps into photoshop over your camino- you then have a scaled reference for your pics