While I still have trouble with Bruce's code, I went back to the PIC data sheet, and tried the following code which delivers 113Khz, and the circuit delivers 15.2 volts out to 5 high bright LEDs. 4.5v in at 80ma. The LEDs are quite bright.

From Microcode studio, using PIC Basic (not Pro.)

Settings:
poke $19, $7 'Disable comparators
low 0
ASM
LOOP
BSF 005H,0 ;set bit 0, Pin 0 high
NOP ; kill time, 1us
NOP
NOP
NOP
NOP
CLRF 005H,0 ;clear bit 0
GOTO LOOP
ENDASM