Thanks for the reply Joe and you are the one I need to chat with! I worked on that runner with the boss intrusion using long shank carbide burr and was able to remove a good bit of it and smooth
it out. Don't really know why it needed to be there with enough thread with out it. Would like to hear what work you did to the manifold and results.
Did you flow the intake before and after port work? After opening up the plenum bores I went in and opened up,radiused and blended the roof of the runners as best I could.
I run a 1 inch four hole spacer to match under the carbs. From what I have read if you cut down the plenum divider wall the airflow will tend to favor the lower level of the manifold due to air speed.
I wish there was a better taller intake like this to mount Holley carbs in line and maybe one like the 427 Tunnel Wedge but nobody has stepped up to build one....unless you have a Chevy LS engine!
However for street use the Price intake isn't that bad with the cam I'm running. True my first intake was a Super Victor with 950 Holley which pulls harder at the top but this intake seems to run
better below 4000 RPM. It will cruise with a 14.4 A/F ratio in 5th gear at 1600 RPM where the Super Vic was not as comfortable and needed a 13.4 A/F minimum.
This Dynojet run back in 2018 with the Price Motorsport intake and the carbs opened up to 650 cfm each. 82F that day with East Coast humidity.
I just like the dual Holley setup....a result of my youth in the 60's!