I just downloaded Desktop Dyno (what pirated software???), and I need some specs for the 1.3, and 1.6.
Bore
Stroke
Cam lift/duration stock(and any aftermarket cam lift/duration figures you may have)
valve size stock(anybody got any info on the Sumo head? valve size, airflow specs??)
Compression ratio
Carburetor cfm stock(and weber/pony if you have it)
I have been through my FSM(no really I swear I didn't pirate that too!!!), and all I could find was the stock bore for the 1.3. I just kept bumping the stroke numbers until I got 1298cc. so I think I am pretty close on that.
I want to figure out some good engine profiles (H.P. for mudders, low rpm torque for crawlers), and put 'em on my website.

If someone has a manual handy they can fix you up with most of the numbers, probably not cam data. Here is what I got off of several cams when I did my engine swap.

1.3L Carb (1988 model)
215 Lift
166 deg Duration
36 deg Overlap
1.3L EFI (1990 model)
240 Lift
168 deg Duration
46 deg Overlap
1.6L EFI ('80s model, press in wrist pins)
255 Lift
175 deg Duration
74 deg Overlap

Note: Lift and duration measured at the cam and does NOT include the rocker arm ratio (1.6). Duration and overlap measured at .050 lift on the cam. Degrees are referenced to the crank.

One item I don't have is lobe center to 'degree' the cam. You'll have to guess on that one. If you run several numbers I'd be interested in what effects the cam degrees have (rpm power shift). I used a 1.3L EFI in my 1.6 motor, and degreed it 4 degrees retarded for added bottom end. How much of an RPM shift comes from 4 degrees I'm not sure of....

If your program needs more info on the cam timing, I have cam maps at home I can post tonight. Summary info posted above is all I have at the moment.

I ran the numbers with the stock cam in the 1.3('cause I don't have bore, and stroke for the 1.6 yet!), with the cam timed straight up, then 4deg retarded. Retarding the cam seems to spread out the power over the torque curve...the numbers say it didn't make more torque....it just made the same amount for another 1000rpm...that is a good thing!! The power all fell towards the lower en of the curve too....attention crawlers!!