David,
You have a dual carb 1776cc engine with some nicer aftermarket parts. Here is the formula to figure out engine displacement:
Bore(mm) X Bore (mm) X Stroke (mm) X .0031416
In your case this equals 1775.4cc
What you can do to improve isn't a simple matter. The easiest and most obvious is a bigger crank to turn it into a stroker... 78mm would turn it into a 2007 and 82mm would turn it into a 2110. Beyond that, you are looking at larger cylinder heads and pistons (go 94, the 92s are trash) and perhaps upgrading your Webers to 44s.
However, you want to talk to someone to make sure the other aspects of the engine (case, cooling, etc) as well as your transmission can handle the power you add. If you are in PA, I suggest contacting Kurt Mezger of Vintage Performance. He has a website at www.vintageperformance.net and built my 2176.
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