This worked for me...First, install a valley pan with blocked off exhaust crossovers. Then install a 1/4" carb insulator kit - Mr.Gasket has 'em...It's a laminated design with 2 aluminum plates and 3 gaskets...I painted the edges flat black to make less noticeable. If you're using a stock intake, make sure to get the one with 4 individual barrel holes as opposed to the one with one big square hole.

This will greatly reduce "hot soak" issues....regardless of carb brand used. Yes, cold driveabilty may be affected slightly, but unless it's a daily driver, it's not a big deal...