I have a 1275 that I am converting from 2 HS4s to a microsquirt.
1) What kind of fuel pump did you use (internal, external, what kind and how much pressure, flow etc)? Did you retain the original Mini fuel tank?
2) How did you route the fuel return line and where did you put the pressure regulator?
Are you using standard ignition timing or MSII / microsquirt electronic timing advance?
I am planning on locking the advance weights in my distributor and having MS do all the ignition timing.