[bon]

If you're using nitrided cams as used by triumph themselves after 1969 then the oil feed to the tappets is not needed and only wastes oil that would be better being sent to the big ends. The oil coming down from the exhaust rocker box should lubricate the tappets and the cam needs very little if nitrided.

The point morgo are trying to make with the silver steel thing is make sure your engine is in good enough condition to cope with the extra 100 cc.

 

[bon]

I have a morgo kit and its not drilled for a tappet feed, i don't know what mark mine is though, morgo answer emails very promptly though and should be able to tell you in a minute.

What cams are you using ?

 

[bon]

If you used the 10 stud top end you'd have to change to the shorter conrods too, all you need to change with the morgo kit is the exhaust cam to a nitrided type.