Re: Block cleaning
Vinegar takes a lot of time to do it's thing. I ran it straight for a few days and I know it wasn't long enough to do much good, so patience is your best virtue. I did quite a few flushes after dropping it pulled the lower connection off to give it a fast dump and refilled with 50/50 coolant. I know glycol can make it run 20 degrees hotter but the 3 row tube and 10 fpi recore has proven itself to be adequate. I also have a 160 thermostat as close as possible to the upper neck.
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