Actually all of that is factored into almost every single intake manifold ever made, especially the SBC, if you look at the math for the 2nd wave at 8000 you find a bolt together single plane SBC head and intake for most race applications. The more you learn about wave tuning the more you start factoring in Cross Section and shape to adjust that usable length to tailor it to your rpm.JodyB wrote: ↑Sun Jul 07, 2019 11:05 pm I'm gonna side with 88firebird here. If the usual hotrodder compromised formula of 2800 stall, 6000 shift, and at best a 3.73 gear at 3500lbs, then the best compromised carb intake manifold has not been marketed yet. With some r&d, a 2 4bbl long runner intake targeting the highest average in the 2800-6000 range would CRUSH evey dual plane on the market.
Here is a good podcast to listen to from someone who actually builds intakes for a living.