dizzy 'bout dizzies

[regis101]

I've been reading the bentley again. It's getting clearer. We know that VW was notorious for many curves for their many applications. Here is what I can state. The 205E (73 man.) begins cent. at 1050-1250 rpm. At 2000, it's 13-16 deg. 3600 and it's all in for 23-26. Vacuum on the same begins ( advance side only), at 3.2-4.3 in./Hg and ends at 7.9 in.Hg. for 8-12 deg. So. Easy comparison to my application of a 205S (78 man.). Cent. begins at 1000-1250 rpm. At 1600, it's 8-13 deg. At 3400 it's all in for 20.5-24.5 deg. As for the vacuum, it begins at 3.2-5.1 in./Hg and ends at 7.9 in./Hg for 8.5-11 deg. It is hard to deduce a true comparison because the numbers are not listed at the same rpm. Using my noodle, the curves seem so close. The vacuum side is about dead on. So what should I see or what do you know about the graph of these two centrifugal curves. All I need to be told is that one is slower than the other or it doesn't matter or that FI likes a quicker or slower curve or..... Our Westy runs great and all, but I want to nail down the erratic timing. Maybe get another mpg or something. Thanks, in advance, Regis