http://store.summitracing.com/partdetai ... toview=sku
you use a CRANK SOCKET to index the crank so the lower crank gear index mark is at 12 o'clock and the cam gear index mark is at 6 o'clock, and don,t for get to spin the engine one full revolution so the cam and crank gear are at 12 o'clock before dropping in the distributor so the rotor points at the #1 cylinder or it will be 180 degrees out.
read these threads also
viewtopic.php?f=52&t=540&p=677&hilit=nylon#p677
http://forum.grumpysperformance.com/viewtopic.php?f=50&t=902
http://forum.grumpysperformance.com/viewtopic.php?f=52&t=90
its false economy to do things cheaply if its very likely to result in less than ideal performance or problems with reliability.
the cam and crank gear are a matched set, and reuse of the old crank gear is NOT advised!
theres several totally different types of chains and the gears and clearances are NOT always ,interchangeable ,... use of the wrong gear CAN cause excessive wear.
CLOYES makes TRUE ROLLER SETS that last longer and stretch less than the cheap imported link belt chains, that sell for $20 in the auto parts stores, its not un-common for the cheap sets to have the index off several degrees, and if you don,t degree in the cam its not un-common to have an engine run at less than its potential with the cam timing being off several degrees
http://store.summitracing.com/partdetail.asp?part=CLO-9-3100&autoview=sku
btw
its a good idea to mix some crane cams (MOLY) assembly lube and some marvel mystery oil in a tinfoil pan and soak the timing set in the mix for a few minutes before installing them, coating the surfaces tends to lower the tendency to wear as the moly forms a chemical layer that penetrates into the metals surface and protects it.
