I would probably go with a bigger stroke. But I am happy with my 3.79 stroke small block. It is a 1973 340 block that is not filled or has a girdle. I am running the 360-2 heads like you have but mine were ported by Brett Miller. It is only 10.9 comp. and a roller (255/266 a.050) I have never ran anything but pump gas. It made peak hp at 7300 but I only shift at 6800. It would probably run faster if I shifted at a higher RPM and it didn't have my home made headers on it. I have never built headers before.