340 gas mileage

1406 edelbrock stock was really lean on my mild 318, that carb needs to jet up with a thinner rod set up, also u need to recurve that dizzy if you truely have high compression limit the timing, then lastly limit the vac advance pod stock they usually pull too much timing at cruise, also that cam and those 2.76 not a good combo, try some 3.23s or 2.94s, my 318 mild cammed advanced to 106 9:5 comp gets 15mpg on the street with 3.55s but alot of dizzy work and carb got me there