1956 Corvette 265 ci
"225hp version of the 265 V8, using a pair of Rochester 4-barrel carburetors, was made available. An optional 3.27 rear axle ratio could also be ordered. In his spare time, Duntov had developed a ‘high lift’ camshaft for the 265 that, with the dual 4-barrel carburetors, boosted output to 240hp."
1957 Corvette 283 fuel-injected engine:
"For the first time ever, mechanical fuel injection became an option (Code 579B among others) and, when fitted to the 283 engine, it would produce 283hp. This is considered the first time in history that a production GM engine hit the one horsepower-per-cubic-inch of displacement level."
From:
Bowtie Breakthroughs
