If you can after you hand tighten the bolts look closely at where the washers in relation to the hood hinges are. you should find marks in the hinges, most I have found are of a circular pattern where when the factory installs the hood then paints the truck it leaves over spray marks, re-Aline the patterns of the over spray and give two of the bolts a snugging ,one on each side,not to tight.
As stated before use an old sheet or blanket on each fender to avoid scratching the fenders, slowly lower the hood watching both sides as the hood comes down and recheck the fit. make small adjustments if necessary. after you're satisfied with the fit, tighten the last two bolts. slowly lower the hood. I've had slippage before, don't remove the fender protection yet, latch the hood. stand back and look at the way it fits.
You will now notice the gaps more between the hood and fenders and then start walking around the truck and say to your self hum 'I never noticed that before'.
Don't worry this is a classic case of "THINGS THAT MAKE YOU GO HUM". If you can, unlatch the hood, I'm not saying this will happen to you most likely not, oil hinges and latch, re-latch the hood, and walk away. go have a cup of coffee a soda watch a movie. then if you're not satisfied with the fit try adjusting the fit. always make very small adjustments.

if this is to much information just ignore it and move on.
have fun

If you decide on the 12 pack method don't open until done.