[Rory McNeil]

Not a Nova, but when I put Jerico DR4s and Long V gate shifters in my 78 Ford Fairmont and 85 Mustang, I sliced the top of the trans tunnels , near where the drivers side of the tunnel meets the top, bend the side wall straight up enough to clear the shifter linkage, and then welded in a strip along the top to fill in the gap, which in my case, was about 3 1/2 " wide. That said,an ealry FOX body Ford has a fairly narrow trans tunnel to start with, as the only manual transmissions available were internal rail shifter models, or a C4, with the AOD coming out in the mid 80s.Since a 70 Nova could have had a TH400 or Muncie with external shifter linkage, the tunnel is wider, but appears lower in height than the FOX body. Regardless, the side of the tunnel will need quite a bit of room for the high mounted shifter box unit.
Wayne, are you coming to Mission in 2 weeks for the "Smoke Fire & Thunder " race? If so, our stick group has races both days, so you could check out some trans tunnels there. Not sure if they are the same, but one of our guys has a 77 Camaro with a G101A and Long V Gate shifter.