"Jonny Miner" <woofhead@msn.com> writes:
>
>According to Muir, my type I 1966 engine (the ID # starts with an F) should be 
>timed to 7.5 degrees BTDC. The problem is, in the table that shows where each 
>year is to be timed, it shows mine as having three timing marks (TDC, 7.5BTDC, 
>10BTDC) but my pulley only has two marks. What do these stand for? TDC and 
>7.5BTDC? Which one should I time to?
>
>Thanks,
>
>--Jonny
>
You might want to consider buying one of the degree pulleys.  They're about $15
and easy to install, and make it simple to see where your timing is set and to
check your advance.  I'd recommend the original size instead fo the "power
pulley", which will not only require a different size belt but as an added
"benefit" will also underdrive your fan.  :-)

Pat Walsh, '71 Westy, walshp@ippdsgi3.nawc-ad-indy.navy.mil