Do I need to bleed the front brakes with an adj. wilwood proportioning valve install? I bled the rears and then it got dark out. I'm just curious. I installed the valve in the engine bay btw. For some reason, the directions said to install it at the rear...

 

I think they say to install it there because it's easier and because if you do it there, you'll not touch the fronts at all. I did mine today in the engine compartment and had to bleed everything because I removed the master cylinder (and put a new one in, but that's beside the point). I'd say you're fine if you didn't disconnect the fronts, but if you did, please bleed them even if you're not having a problem. There could be an air bubble waiting to find a bad place.