Fast Eddie said:
I'll bow down to your far superior knowledge about such matters LAB, but realistically, "most 74 850s" is surely gonna catch more MK2As than any other?
The Mk2A wasn't a 'later' model than the Mk2 or built in any significantly greater numbers than the Mk2 as far as I'm aware.
Mk2s and Mk2As were produced concurrently (from 307311) but the variants were originally intended for different world markets, the Mk2s mainly going to North America and the 'low noise emission' Mk2As to Europe, although
some Mk2A were later sold in the US, the number of Mk2s and Mk2As are probably not much different.
Fast Eddie said:
As to exactly when RH10 heads arrived and left the scene and which VIN numbers had them and which did not, I have not the faintest idea (although you might).
That's basically impossible to tell but there's only one cylinder head listed in the 2/2A supplement (065507).
Fast Eddie said:
All I mean is that the latest pre MK3 850s, fitted with RH10 heads, would appear to be the best package. And that the model most likely to be prevalent within that catchment, is the MK2A.
And that is presumably therefore why MK2As have the reputation of being the sought after one. But I'm open to counter theories of course...
It applies equally to the Mk2 and Mk2A, the difference being the Mk2 already had the peashooters and perforated metal airbox. Most 2As will probably have been fitted with peashooters and the black plastic airbox has often been discarded by now which adds to the difficulty in model identification.
Some, or all, Mk2 peashooters had restricted outlets which probably stifled performance a little, but I doubt many of those original peashooters are still in use.
