Which way to go with cam adjustments in altitude?

Jeff Stout · 11-15-2016, 10:31 PM

SBC with a Super Stock solid roller. Runs great in 2500 adjusted air and satisfied. Now going to 6300 ft of air and I'm asking what would you do with cam timing ( Jesel Belt), Valve lash. Cam is 1 degree advanced and both IN and EX have .026 lash. Would you Advance cam, Tighten lash, loosen lash? Trying to go the right direction with limited testing at track because of time at event. Thank you Jeff

PS This is just about cam timing as I have a converter for altitude that will let motor leave at 6100 and not changing gears

Lee Valentine · 11-16-2016, 06:43 AM

Loosen intake lash .010-.015

11-15-2016, 10:31 PM	#1
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,407 Likes: 53 Liked 654 Times in 254 Posts	Which way to go with cam adjustments in altitude? SBC with a Super Stock solid roller. Runs great in 2500 adjusted air and satisfied. Now going to 6300 ft of air and I'm asking what would you do with cam timing ( Jesel Belt), Valve lash. Cam is 1 degree advanced and both IN and EX have .026 lash. Would you Advance cam, Tighten lash, loosen lash? Trying to go the right direction with limited testing at track because of time at event. Thank you Jeff PS This is just about cam timing as I have a converter for altitude that will let motor leave at 6100 and not changing gears Last edited by Jeff Stout; 11-15-2016 at 10:33 PM. Reason: more

11-16-2016, 06:43 AM	#2
Lee Valentine Senior Member Join Date: May 2004 Location: Brookfield, CT Posts: 708 Likes: 13 Liked 322 Times in 68 Posts	Re: Which way to go with cam adjustments in altitude? Loosen intake lash .010-.015 __________________ Lee Valentine 1661 STK

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