Guagues, Which are most useful? Options

[GTeener]

I already have the /6 dash guagues but not the center console guages (voltmeter & oil temp).

I am not totally sure my oil pressure guague works properly, but I digress...

What I want to know is, would it be be advantageous to have all these guagues (and working of course)?

What are the most important secondary guagues (not Spedo & Tach) for these cars?

[lapuwali]

Not necessarily a sudden increase. Bad things happen if the heads get above 450dF. Normally, they should be no higher than 350dF. The temperature varies widely based on load. It can be as low as 250dF on a fully-warmed up engine while idling, up to 400dF when pulling up a steep hill at low revs.

$100 is about average in price. All of the expense is in the gauge. You'll see they also sell just the sender for only $15.

Andy, I agree on the nice display with temperature compensation. I'm working on it. Not four numbers, as I think just monitoring the hottest cylinder is adequate (and I want to keep it small, perhaps three 7-segment digits on the tach face). Just can't seem to find the necessary circular tuit.