The intake are made for use with the TQ carb. This is ether for class racing requiring the use of the TQ,
OR, for use of the TQ in the street, street strip adventure. The reusing of a TQ keeps costs down and is a very good street, street/strip carb.

More power can be found with welding, cutting, grinding the intake into a square bore. Follow MoPars recommendations and use the pop sticks in the intake as shown in the engines book.