TTI Small Block Shorty Header Install

It's a nice looking installation and I wanted to know if these fit early a-bodies like my 65 Barracuda. Your 273 was a 2 barrel 8.5:1 compression ratio version at about 185 HP stock? You added the 340 cam, 4 barrel and the headers and you estimate about 220 HP now. Pretty good. No increase in compression or stiffer valve springs or head porting? What cfm is the carb and did you upgrade the ignition?