Today will talk about Very High HP Blow Thru Carb parts (just a little bit).
Many years ago, the IHRA Pro Stock Guys needed more fuel for their BIG engines.
So a couple of racers worked with a company called PCI and came up with Dual Needle & Seat Fuel Bowls so now they had twice the fuel flow capability going into the bowl vs the typical Holley carb fuel bowl.
Because they also had a double float in the bowls they needed a larger bowl and more room for the same actual fuel inside the bowls. But the PCI Bowls worked well for their time period.
Then a outfit called McClintock Fuel Bowls came out with massive fuel bowls that were also supposed to have a fuel anti-foaming design. Not sure if the design ever worked but I have a set of those bowls somewhere.
A number of years later a Blow-thru Carb outfit decided to make new fuel bowls for Blow Thru Carbs (using their own design). PCI and McClintock were basically no longer making fuel bowls. Their design worked pretty well and fed 2000 HP+ engines on Steve Morris Dyno.
Look at first 3 pics below. Company is called Superior Airflow Technologies. Extreme Velocity Fuel Bowls they call them
Later still C&S Carbs made their Dual Inlet Fuel Bowl, BLP Carbs made a Fuel Bowl, Quick Fuel Carbs made a fuel bowl (now owned by Holley).
So the bowls can be bought again IF you have the need for them.
At PRI one year they had a Carb Bowl outfit selling Bottom Feed Needles and Seats. These were to reduce foaming inside the bowls.
They have a nice video on this issue on the web
https://www.youtube.com/watch?v=3aVEwud70I4
A different video from another source.
https://www.youtube.com/watch?v=s-q1eJu1Wz8
So have fun learning about "simple" fuel bowl design stuff today. Reality is they are not simple at all.
Holley Engineers did stuff for a reason.
Tom V.
ps These people make a EXPENSIVE DEAL Bowl.
https://apdracingstore.com/products/...foam-fuel-bowl