Holly carb help

I'm gonna throw my 2 cents in.....I had similar issues with my dual quad set up. The idle and cruise (high speed) bleeds are probably wrong. The pressed in bleeds probably need to be changed. To what I can't say. DP is really not a street carb. It is a race carb.You would probably benefit from a vacuum secondary carb with an automatic. It sounds like you have an oxygen sensor. I'd suggest first dialing in the carb for max performance. Let's say 70s and 78s jets. Now if 70s is too fat at cruise dial it down in front till you get what the engine wants. Let's say 65s. So you dropped the primaries down 5 numbers for proper cruise mixture. Now you need to up the power valve circuit the 5 jet sizes so when you romp on it the primaries are dumping the equivalent of 70s. You can either drill out the power valve channel restriction to make up for it or buy a metering block with a replaceable power valve restriction. There are formulas to determine the size the orifice needs to be now to make up the 5 jet sizes. Now when you stomp on it you are back to the correct A/F ratio for max performance.
I hope this helps and isn't too confusing. If you are set on keeping your 700 DP you will need to drill out the bleeds and tap them for replacement bleeds. Make sure you find out what the original restrictions are and use that as a starting point. But I think the PV restriction will definitely need to be messed with so you can get the cruise ratio where you need it and that the primary side can be jetted down .