Tom Hemphill big on B1 heads ran water lines to his heads. He also ran a lot of nitrous so I’m not sure that is the reason why. If you need pictures let me know and I will check to see if I still have them. I lost a lot of pictures when my old computer crashed.[/QUOTE
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works too , I ran water to the center of my 406 sbc heads in addition to the rear to front lines--------
