Jimson no, I never tried the TS90 pipe as I wanted a chamber and preferably low slung at that. I was going to try and make it a bit of a Greenstreak looking thing but it's getting further removed from that ideal the longer I tool around with it. Bit more swapping of bits today and all I can say is with the bits I fitted today it should be low enough to go around corners
Tim, I'm fond of the tiddlers also, probably because I don't have to get involved in any type of bidding frenzy to own them and also because I love the look of the late 60's/early 70's US style dirt track modified trailies. Also it's a rotary valve and I love rotary valve engines in any form or capacity