1965 HIPO 273 intake manafolds.. Any good upgrades??

I might be all wet here...but how do you "over carb" anything? carbs work on vacuum & airflow....dual quads or 6 packs the engine is only gonna pull so much and if you have the idle's adjusted right and the proper jetting ( not too lean LOL) they should work fine....
the considerations are as previously mentioned SPACE & EFFICIENCY ( as in MPG) If you dial them in properly ( using a Dyno & o2 sensor) you should be just peachy and you will have your WOW factor to boot.... there is another consideration, COST for the set up but that is your call