Hello Here is interleaved PFC in Boundary conduction mode. Each of the PFC's only carries half the current, so your individual inductors are themselves smaller than a single stage's inductor
All the files have to be in the same folder for it to run in ltspice.
The actual simulation is this file "PFC _with interleaved BCM stages"
....change the .txt on just this file to .asc and run it. (with the other text files in the same folder)