Look what arrived from the mail today...

One more thing, drain some of your coolant as it will run out of the front and rear bolt holes unless you have studs in there. If you have bolts and remove them be sure and apply some non hardening sealer on the threads when you reinstall them.

Remember also you have to get the manifolds of first unless you've already done that, that adds time. When you tighten your header bolts work from the center out to the ends.

One other thing I would suggest is to take a straight edge and double check the flanges to be absolutely sure they are flat.

Have fun and good luck! If you need some advice be sure and ask.