.038 to .043 for the 96cu. I alays run at .040 and no problems yet!
40
The proper plug gap is 0.038-0.043 Mike
.040 in. RA8CH
.040, or 40 thousandths
.040 is rcommended gap .040
The proper air gap is .032 to .036 depending on spark plug brand.
Gap the plugs .038" to .043" and torque the plugs to 22 ft/lbs.
the gap for a Harley plug on a 88c.i. is 30
This procedure is covered in detail in the proper manual for your model
.037"-.043" using any spark plug gap gauge. I have a 93 heritage softail classic and that is what is recommended.
100/90-19
If it's points or a Dyna S ignition you set the plugs at 28, other wise you set the plugs between 38 - 40