Jim-
It's worked for me for over a year now. I believe the red is of a higher temp. I just went back and checked but couldn't find anything.
There are a lot of people who use it around here, mainly racers. I was skeptical but I tried it and it's awesome. You might not have to wait overnight, the stuff sets up pretty quick. My headers are just a MAJOR PAIN so I don't mind the wait.
Good luck
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2001 Mustang "Mach 1" SVO siamesed 351 stroked to 417ci,Yates heads, solid roller,Trans King glide.
Best 1/4 ET 9.17 (ALL MOTOR)
Best 1/4 MPH 147
My Car
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