procomp says there leveling kit will raise the front 3in and if this true will the truck sit level or would i have to put a 1in block in the rear to help?

2008 f150 2wd.

 

I think just about any company will tell you their leveling kit will make your truck sit level, kinda the point of a leveling kit, right?. Go take some measurements (front and rear) and take the height you have now, then add the height to the front you're gonna be adding, put 2 and 2 together and I think you get the point. Pretty easy to figure how you'll be sitting afterwards. My recommendation? Get an autospring 2" leveling kit and call it a day . Also, I wouldn't recommend a 3" leveling kit. I know you're a 2wd (no CV's) but you still have ball joints and that extra inch is only gonna cause more unneeded and unwanted stress on those parts

 

I wouldn't go over 2.5 inches with a leveling kit.

 

I agree