O.K.. I read for 1 hour after searching for "recurving". Part # is:3656257. It has points, with an adjustable vac. advance. It has 9.5X stamped on the arm. It also has the "high-performance" 15R piece.
My question is, how long is the slot on a 10R? I read and read, but I either ran over it, or didn't understand.
This is the only dizzy I have, so I'd rather do it right the first time.
Thanks guys,
BBBanjo

_________________
225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb

To determine slot length you need to do some measuring and some math...........

1. Measure diameter of pin
2. Measure length of existing slot
3. 2. - 1. = existing movement available
4. 3. / (existing degrees advance) = distance per degree
5. 4. * (degrees wanted) = movement wanted
6. 5. + 1. = new length of slot.

_________________
Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Where do you set your initial advance and how much total do you need??
DD

emsvitil, thanks for the info!
Doc: I have no idea. I'm getting ready to start up my slant for the first time. I did understand I want alot of initial, I just thought I'd go ahead and modify the part before, so I have that much less to deal with later.
I'll be driving everyday, so I don't need a race curve...just something to go with the better cam and intake. I'll have to fine tune it after she gets broke in.
Thanks,
BBBanjo

_________________
225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb

If you're just starting up the motor for the first time, just run the stock distributor at a lower setting like TDC so you can break it in without worry of pinging, then once everything is 'worn in /worked out' then you should change your timing curve... Even my timing curve is nothing like it was when I started my mill the first time...better safe than sorry...

Time to get a second distributor (one for driving, and one for 'testing').

-D.Idiot