I have, I believe to be a 64 250 motor, and i just took off the head to tap out some exaust manafold bolt from the previous owner, what is the correct valve setting on my engine? I have been told : 17 and 19, 12 and 17 and even 6 and 18... i have no idea. thanks, Rusty
well it looks like there not even close here is the valve lash out of the shop manual http://www.chevyduty.com/forum_pics/valvelash.jpg Rick tech2@chevyduty.com
