It al depends on your driving habits. Generally you can expect between 17 and 19 miles per gallon.
The 69 Nova had the small block 302 c.i.e.
Nova - 1974 One Small Step 5-4 was released on: USA: 25 January 1978
First of all is that a 350 is not a big block. It is a small block.
pooop
18436572
My 64, with small block, and automatic was just under 2700.
I have a 1974 nova and my has 15 gallon
I believe that all small block v-8's until 1980 should fit no problem,I swapped a straight 6 out of my nova to a small block 400, and just recently a small block 350,
Not without modification. The 1973 and 1974 body styles are unique in the Nova series.
30mpg
The exhaust is different, and you will probably need a bigger radiator.
1974 Nova sales peaked at 390,537 with the average rate of $2,810 to $3,105.