Not said in the video - nor did I find on the webpage, but I assume it is a chain-drive? For about $2500-3500 more you could add a real transaxle (as I recall), with changeable rear end ratios. NOW - that would be killer.
Although, for a much smaller investment converting a sports racer - or rebody a formula ford could be cheaper - but you'd have another project!
Cheers - Jim
BTW I liked his comment about rego requirements in FL. Another +1 for the sunshine state!!