I found I have been having the same problem fluidampr's timimg marks for years. Thankyou to 05-04-2012 10:30 PM chengny's post. I actually got a hold of a Nick Orefice Ph. (716) 592-1000 |
www.vibratechtvd.com| www.fluidampr.com Performance & Heavy Duty Dampers Made in the U.S.A.
Who says "Pre 69 the timing marks are off 10 degrees".
But I am hanging on to this info you posted a few years ago:
In 1976 GM moved the location of the timing tab on the 350 about 12 degrees CCW.
Prior to 76 the tab was at about the 2 o'clock position. Starting in 76 model year the tab was moved to the 12 o'clock position (behind the water pump).
Pre 1976 the keyway and the outer mark lined up. After 76 the timing mark is 12 degrees CCW out of alignment with the center line of the keyway…..
Before when #1 cylinder fired and the distributor was properly timed, the balancer mark was at around 2 o'clock.
When post 76 SBC's are timed correctly, the balancer mark will be at about 12 o'clock when #1 fires.
Now back to wrenching on it!