Thread size Intake manifold bolts

Anyone know that the thread size is on the intake manifold bolts? I've got a metric basic tap set but figure this is sae. Just preparing for the manifold gasket job.

Finally got my garage cleaned out so I can fit this beast in and still have room to work around it. Looks like the majority of the bolts are metric. Can anyone confirm that the intake bolts are metric threads. I'd just pull one but figured that might just add to the leak problems and possibly warp the manifold.