Hi Thanks for replies, however this effect started after I had the head worked on. This means it is either a direct result of the head work, some result of say the higher compression or a coincidental effect ie the short engine was not changed until later. It is very difficult to describe an engine ...

Hi all Not strictly TABC (although I have a TC) but an XPAG question regarding my YB that now sounds like a 2 stroke or motor boat. A slight exaggeration but not much. When I recently had harder valves and new guides I also increased the c/r to 8.6:1 which I expect some of you have also done.However...

Much better Steve, and you've improved the scenery too!

Sorry my before and after would be my Y type but not quite there yet

Great web site

Best regards
Brian Hough