86Caprice

Hi I've got a 86 Camaro 305(was TPI will be 2bbl carb) thats going into my Caprice race car the engine is currently in a pretty simple state(block, heads, internals assembled with everything else off) and I figure it's a perfect time to switch out the cam seeing as I need a new timing chain anyways so I've come to ask your opinons on a good cam, nice power but it has to have a certian amoutn of fuel efficency. Any opinions welcome just would like to know asap because I'm on a tight schedule to get this car ready for next season. Thanks