1966 Dodge D/Dart ~ 'Mystery, Myth and Misconception'

This is a nice publication.
The 283/ 270hp was basically the 315hp with the fuel injection replaced by the 2x4bbl, But the compression ratios were 9.5 to 1 for the 270hp and 11 to 1 for the 275 and 315 hp FI versions. Additionally the car weights look to be 3340 ish (loaded with hardtop)? (2905 shipped) Several racers said they would swap the FI for the 2 x 4 bbl. to run in different classes, but that should have given something above stock 270hp. rating alone. They were typically over bored to 290/292.

From
http://www.vettefacts.com/C1/1961.aspx

CS = 283-cid 315-hp V-8 with 11.0:1 compression ratio, three-speed manual transmission, high lift camshaft, and fuel injection

CU = 283-cid 270-hp V-8 with 9.5:1 compression ratio, three-speed manual transmission, high-lift camshaft and dual four-barrel carburetors

[ame]https://www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/Corvette/1961-Chevrolet-Corvette.pdf[/ame]

Could the 61 Corvette's 270 hp performance (stock) be anticipated - High 12's in 66 and lower 12's by 68 from the stock data published?