Here's what I found. Got it off the airaid.com website (did some google action).
1986 Ford F-Series Pickup V8 460 7.5L 4 bbl (VIN L) w/Ext. Fuel pmp 800-357
1986 Ford F-Series Pickup V8 460 7.5L 4 bbl (VIN L) w/Int. Fuel pmp 800-357
1986 Ford F-Series Pickup V8 460 7.5L 4 bbl (VIN L) 800-357
1986 Ford F-Series Pickup V8 351 5.8L 4 bbl (VIN H) 800-357
FWIW...I've run Motorcraft, Fram, and NAPA gold paper airfilters in my SVT, and K&N, AFE, and soon an Airaid drop-in oiled airfilters in my SVT. TBH...I've always felt the AFE was the best so far, but that was a 4 layer cotton filter.
It just seems to me that most manufacturers air intake systems are designed primarily "to get the job done" 1st, then noise surpression, then "make it fit into the confines of the engine bay"...with performance bringing up the rear. To my way of thinking...these restrictive intake paths need as little resistance as possible. And for some of us, who have optimized our TBs, have high flow exhaust systems, and have done everything we can to promote performance, an aftermarket AF just makes sense, and pays off as you mod more.