The pictures below are the top gear of a new adjustable timing chain set, being developed by Survival Motorsports. At the PRI show Barry and I hounded Cloyes about doing something like this for the FE (Cloyes makes these already for other engines), in light of the availability of my two piece timing cover. But Cloyes has been kind of moving slow, so Barry has been taking matters into his own hands. Just to give them the basic idea and a prototype product, he has taken two of the top gears from one of the Cloyes premium sets, and machined them to make a single, adjustable top gear. This is really going to be a cool product:
There is a +/- 10 degree range of adjustment on this gear, and it will come with the premium roller chain, making it a top end setup. I'm not privy to all the arrangements Barry has with Cloyes, but my guess is that if they don't make this available soon, Barry will probably manufacture them himself.
I can't wait to try one of these out on the next engine...