another type F user here..and as stated earlier the +3 was superseded by +4...we only use +4 in our 4speed trans(o.d)...for 3 speed's it's typeF....your results may very..as will the responses you get to this question..

5566704-21-123.JPG (7 downloads)
-1967 Plymouth Satellite #3555
446 cid on E-85
best 1/4 et 10.577 @ 127.58
best 1/8 et 6.722 @ 100.68
best 60ft. 1.419