Those numbers look believable except for the 4.3V6 and 5.9V8 typo errors... neither of which existed in the Ford lineup. MFI stands for Multiport Fuel Injection which is actually an accurate way to describe the system found on these trucks.

 

Multiport Fuel Injection... Hmm, I thought the M stood for mechanical. Good to know. Yeah the 4.3 v6 did seem kind of strange too.

 

Ok, here goes the numbers for the f250's, gonna try to make this one more concise...

1987 - 102,647
14.2% - fuel injected six cylinder
50.0% - carbureted V8
10.8% - fuel-injected V8
25.0% - diesel

1988 - 134,864
11.4% - inline six cylinder
12.5% - 5.0 liter MFI V8
33.8% - 5.8 liter MFI V8
20.7% - 7.3 liter diesel V8
21.6% - 7.5 liter MFI V8

1989 - 167,866
09.2% - inline six cylinder
09.9% - 5.0 liter MFI V8
40.5% - 5.9 liter MFI V8 (5.8)?
18.9% - 7.3 liter diesel V8
21.5% - 7.5 liter MFI V8

1990 - 126,278
08.1% - 4.9 liter inline six
08.8% - 5.0 liter MFI V8
39.0% - 5.8 liter MFI V8
21.6% - 7.3 liter diesel V8
22.5% - 7.5 liter MFI V8

1991 - 88,584
08.6% - 4.9 liter inline six
09.0% - 5.0 liter MFI V8
36.8% - 5.8 liter MFI V8
23.2% - 7.3 liter diesel V8
22.4% - 7.5 liter MFI V8

1992 - 85,382
03.0% - 4.9 liter inline six
00.0% - 5.0 liter MFI V8 (15.1%)?
28.6% - 5.8 liter MFI V8
30.2% - 7.3 liter diesel V8
23.1% - 7.5 liter MFI V8

1993 - 92,335
10.0% - 4.9 liter inline six
08.1% - 5.0 liter MFI V8
27.6% - 5.8 liter MFI V8
38.2% - 7.3 liter diesel V8
16.1% - 7.5 liter MFI V8

1994 - 87,240
03.0% - 4.9 liter inline six
00.1% - 5.0 liter MFI V8
32.6% - 5.8 liter MFI V8
38.2% - 7.3 liter diesel V8
26.1% - 7.5 liter MFI V8

1995 - 117,590
03.0% - 4.9 liter inline six
00.2% - 5.0 liter MFI V8
34.8% - 5.8 liter MFI V8
37.0% - 7.3 liter diesel V8
25.0% - 7.5 liter MFI V8

1996 - 131,513
02.0% - 4.9 liter inline six
02.0% - 5.0 liter MFI V8
34.0% - 5.8 liter MFI V8
38.0% - 7.3 liter diesel V8
24.0% - 7.5 liter MFI V8