[Formulajones]

Originally Posted by Sirrotica

This is the style most dirt track cars run:



Smooth contours in the base and lid to turn the air into the carb throat.

Link to Allstar:

https://allstarperformance.com/air-c...acer-all26094/

Yeah that's what we experimented with on the dyno recently. Only difference is I used a factory gm base which is curved nicely much like your picture and not blocky like the aftermarket stuff. Then played with lids. The one in your pic worked the best.