On my 75 and 79 they run just over 1/4 most of the year but in summer. THe 79 with working A/C would hit half. That's with a 180 thermostat. No markings to know that the temp is.
Now on my 88 454 burb. Straight up is 210 degrees. Hash marks are in the same location as the older trucks. The truck runs a 195 thrmostat and with the A/C on 210 is not uncommon for it and concidered NORMAL temp according to GM on FI trucks.
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Grim-Reaper
70 Pontiac LeMans Sport Convertible, worlds longest resto in progress
Looking for 71-72 2wd Blazer or Jimmy Project
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