Here you can see a little trick, is to put a vacuum tank connected to the fuel pressure regulator and in turn connected to the Jenvey to reduce the pulse of depression and have a more stable delivery of fuel that is recommended when runs on rallies.
Another little trick is to put the coil in the chasis, so that reduce the vibration and temperature, to obtain more power and take cool by the exterior air that enter for the left.
Here is possible to see the fuel exterior electric pump conected directy to the filter.
Note, the vacuum tank is of cars of group Audi-Volswagen-Seat-Skoda, but have a modification because this have 2 needles for the tubes.
If you see well the exterior photos, you can see the 2 modifications more;
-1 (photo 2) New air intakes for cool the alternator.
-2 (photo 3) New air exhaust for eliminate the heat of engine a more efficient.
But really the the most important is in the inside engine and gearbox, because outside not is possible to see nothing important.
I hope you liked the little story and the explanations of why some small things.