Has anyone swapped a Tremec (or other) 5- or 6-speed transmission into a '63 Avanti? Does anyone sell a conversion kit? I know Myer's has a conversion kit for a Chevy automatic tranny; I was wondering about a manual conversion. Right now there's a 3-speed automatic in there. Thanks for your input. I have a '63 that needs complete renovation. In a way this is good because it's a blank slate and i can make it what I want. Although I haven't decided anything, the thought is to keep it looking like a '63 while using technology to improve handling and performance.