Larry,
Here is a recurve kit for a Mallory "Yt".
http://go.mrgasket.com/ProductDetail...inselection=38
mallory "yt" advance curve change kit
Regain horsepower & throttle response with ACCEL Mechanical Advance Curve and Spring replacement kit. Genuine ACCEL quality parts for your Billetproof Electronic Breakerless Distributor.
Model Number: 29014