no.

the 70-2 necks are more shallow, i believe due to the taller round air filter

HEIGHTS FROM BOTTOM OF CARB NECK on the air cleaner
TO TOP OF stud CROSSBAR


................ 1969 ....... 70-72
383-400 .... 3 1/2” ..... 2 1/2”
440/340 ...... 3” ........... 2”