I had to add a 1/2" spacer (couldn't find a 1/4"-all I needed- so I chose a 4 hole 1/2" barry grant phenolic) to my BT to get carb linkage clearance at the manifold.
Since the BT pantera version is actually a "standard" manifold with the angle milled off, you may find a "standard" manifold and a angle plate turned round may meet your needs.
I also found I had to do a bit of die grinding to port match my carb and spacer.
Throttle cable bracket was custom too. A bit taller and forward to get reasonable throttle cable pull geometry.
With a Speed Demon 650 and a 2"x14" aircleaner the engine cover on 7102 fits well.
Pleased so far.
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