[hans2]

If using a Euro Bosch distributor with the Spica injection setup, should one use the USA timing specs or the Euro timing specs (per linked chart below)? I.e., does timing conform to the method of injection or the brand of distributor (or both)?

http://www.centerlinealfa.com/tips/images/p60.pdf

 

[Andrew]

Normally you shoot for the maximum advance for the car/engine combo (presumably what's marked on your pulley, if stock) and let the fixed advance fall where it will. Assuming you can't change the distributor's curve
Andrew

 

[gigem75]

advance until it starts pinging, knocking, making ratteling sounds then back off until it goes away. That is generally 36 or 37 degrees which is a tad past the M mark on the pulley. basically what Andrew said or just set it at the "M" mark with the engine running around 3000rpm. Someone correct me if I'm wrong on the 3k, going on memory. if you look at all the curves for all the distributors max advance is reached around there.

There is an excel spreadsheet on the forum somewhere giving all the curves for all the distributors, most all anyway, used on Alfas. Your distributor is probably listed on it.

 

[Andrew]

Tom Sahines confirms most normal Alfa engines like about 36* max.
Andrew