No, your OK with that. My guess is that your engine has a lot of crud build up that is restricting the flow but 25 is fine to run. If it drops to 15 then start to think overhaul. Also the gauge may not be correct. How many miles is on your engine
59chevy36?

1953 Chevy 5-window 3100
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain