Yelfig - Thanks for the reply. I'm already fairly up on the ratios/interchangeability of the various Fiat/Lancia C510 boxes and was planning on using Coupe 2.0 16v/Tipo 2.0 1st and 2nd. I had found conflicting information on the Punto GT box, some said it was 3.909:1 and some 3.535:1. Clarification is good tho so thanks.
Kas - I have a Mk1 Uno Turbo road going hill climb/sprint car that I have raced twice. Since my last hill climb (July) I have decided I need a close ratio gearbox. I bought a Punto GT box with 60,000 on as my base to start from. As I mentioned, first and second will come from a Coupe/Tipo. I have also recently bought straight cut 3rd-1.620:1 4th-1.240:1 and 5th-1:1 from an Alfa 156 BTCC of the mid/late 90's. I may also use the Alfa 147 final drive 4.06:1 but I'm not sure about this yet. I'm also fitting my Quaife ATB diff for good measure.
Cheers
Liam