Emissions standards saw a progressive reduction in compression ratio for the 302 two-barrel, to 9.0:1 in 1972, reducing SAE gross horsepower to 210hp (157kW). In that year U.S. automakers began to quote horsepower in SAE net ratings; the 302 two-barrel carried a net rating of 140hp (104kW). By 1975 its power would drop as low as 122hp (91kW). Not until fuel injection began to appear in the 1980s would net power ratings rise above 200hp (149kW).