1.7 Dizzy in my 2.0

[Gudhjem]

I have a 1973 2.0. However, my distributor has the following model numbers:

Bosche 0 231 163 011
VW 022 905 205 H

Although I can't find a specific reference to the "H" in any of the online literature, I assume this is just a later version of one of the listed distributors. What's interesting is that the "022" indicates that this unit came from a 1.7 liter, not a 2.0. The advance curve for the 1.7 distributor is different (greater) than the 2.0, and I'm wondering if this is affecting my performance in any significant way. That is, should I buy a rebuilt 2.0 dizzy? Although a more aggressive advance curve sounds nice, I expect the Porsche engineers knew what they were doing and had a reason for putting different distributors in the 1.7 and 2.0 for the same model year.

Does anyone have any insight on how this is affecting my performance? Any explanation for the "H"? Thanks.

[pbanders]

Sorry, I know this question was asked back in January, I just saw it while searching for information on 1.7 L dizzies.

The 022 905 205 H is listed in the factory parts diagrams for engines W0 057 460 through W0 250 000. The W-series is the 1.7L, and the numbers above correspond to the years 1971 through 1972.

Brad Anders