What or maybe were is the correct spot for the temp sender? On my 57 Chevy I just finished a Small Block 383 Build and install. Dumb me I didn't install the sender until after I got the engine bolted down all snug and secure. The easy place was to install the sender in the drivers side head between the number 1 and 3 plugs. You all know the place I am talking about there is a big old plug there in all 350 type heads, I assumed ( there's that word) that plug was actually for a sender. Now that spot seems to me to be a Hot Spot right in the head and between those two cylinders. Got me to wondering should I have installed the sender in the manifold? Plug there as well. Is there a temp difference? Reading from the sender I have installed in the head temps seem a little high, runs at 210 to 220 will get even hotter at times and cools down when I coast down a long hill in neutral to as low as 200. Just got me to wondering is there a big difference of the temp if taken from difference places?

RS