If you haven't used an impact driver don't be discouraged if it doesn't zip the bolts right off. Leave it on there pounding away, sometimes it takes a little while to loosen things up. Electric impact drivers can be very expensive and some surprisingly expensive ones aren't worth a darn. I've had two Harbor Freight impacts and they are well worth the money. My first one was orange, it was Okay, used it a lot and gave it to a freind. The second one is the newer dark red unit and the thing is an absolute beast.
Now I'm into air wrenches. The electric one works great but it is a little big or long and difficult to get into small spaces. Air wrenches are smaller and easier to work with.
I use blue lock tight, as they say, it doesn't hurt and I believe my manual says to use it, but I won't sware on it. I know my Jeep guy uses it on flywheel bolts.
Bolts - Look at the bolts you remove. I mean really look at them. If the corners are frayed or if the threads look compromised in any way replace them. If the treads look bad it doesn't hurt to run a tap in the flywheel to help clean things up. The tap will return the threads to spec. and help clean out any old lock tight or who knows, grease maybe. With the torque used to hold your flywheel on it never hurts to have things as clean as possible. By the way, youj'll have to find a way to hold the flywheel while torquing the nuts. +100 fl/lbs is plenty of force to overcome compression. A clue, your flywheel will have several outside bolt holes use those and a cheater bar ... and a friend, I do mine alone and it's not fun trying to use real serious torque while holding another heavy bar.