Jim is THE hardest-core Cobra driver on the planet! That's a great testimonial...
I'm not as brave as Jim as I usually just drive until the snow flies here in MI., then I tuck my baby away. But, having the valve actually allows me to see +80 degrees C on the
oil temp gauge on those cold morning startups.
I have gone to the AN-12 lines and a bigger Setrab cooler too Jim, and the Beaumont valve and block adaptor assembly REALLY made a HUGE difference in the effectivity of both of those upgrades.