All this talk about slipper clutches reminded me that I either heard or read that Garlits left leg was a bit shorter because he would slip the clutch a bit with the pedal (not from the 2-speed explosion!!). Made sense to me.
Fleetwood has remastered cd's from their original albums 1958 - 1965. www.fleetwoodsounds.com I have five of them, sounds of sanford, 63 winter championship, 63 nationals indianapolis raceway, bakersfield '63, 63 winternationals. Bruce Works good Lasts long time
I got the LP too, you can see it on the right hand side of the wall just under the Hollywood Knights Lp (*** on the cover).
I have a small collection of racing sounds albums. If you can find an actual record store, they usually have a sound effects or similar type section.
Back to the question of manually shifted trans., many earlier G***ers and FED's started out in 2nd gear, then shifted to high, using the great.......Cad/LaSalle/. (I have a very worn 1959 rendition of "Hot Rods and Dragsters in Hi-Fi" LP.........and the T-Shirt).