Hello all! I'm a norwegian, riding a sweedish Vespa 150 (VGLA1T), similar to your Vespa T4? Now I'm rebuilding it with a P2-engine, fitted with Polini/GS-208, MMW-head, Mazzucelli crank, Keihen 28/30 Carb and a B-race Dominator pipe. In front I'm fitting a Sip Conversion fork and a Grimeca Classic disk-brake. But to make this legal in Norway, I need som TUV-papers... I therefore hope some of you have made similar set-ups for yours Vespa T4... (or anything with a VGLA1T-frame...) Hope you can help! Regards! Øyvind