roccodart440
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From Hughes Engines..
Big block Edelbrock RPM
Stock average 285 CFM
Edelbrock Victor 440 Single Plane
Stock average 314 CFM
Mopar Performance Cross Ram Max Wedge 2X4 Casting# 2402726-IM
Stock average 309CFM
Indy Single Plane-- Max Wedge Ports
Stock average 461.8 CFM
Indy Dual-Plane, 440 Port size
Stock average 326.5 CFM
Notes: This intake has terrible core shift at the gasket surface. It must be repaired/upgraded with deep port match and epoxy work.
Max Wedge Cross Ram, 440 port size, 1962-1964 style
Stock average 282 CFM
Edelbrock Torker II 440
Stock average 297.5 CFM
Weiand Team G with Dominator Flange
Stock average 296.1 CFM
Weiand Team G B/B with 4150 base
Stock average 339.5 (This is not a misprint)
Thsi intake doesn't make the power of the victor despite it's flow. Why? This intake falls into what we call the square corner intakes. The fuel/air separation is bad in them, so more power is lost in the separation than is picked up in the greater airflow. Use an Edelbrock Victor!
Holley Street Dominator B/B
Stock average 282.3 CFM
This manifold is designed for a spread bore carburetor, like the M-1. Like the M-1, your money would be better spent on the Edelbrock Victor intake.
M-1 Intake Single plane
Stock average 298 CFM
The stock 440 Victor intake, Stage 1, would be a better choice from both a cost and power standpoint. The Victor is a lower-cost way to get equal or better power.
Big Block CH4B dual plane
Stock average 273 CFM
Notes: Money would be better spent on a new RPM intake manifold.
Big Block Edelbrock 6-pack dual plane
Stock average 302.2 CFM
We have dynoed a hydraulic cammed 493 cu in with stage 1 version at nearly 700HP.
Big Block Edelbrock 2x4Bbl dual plane
Stock average 286.4 CFM
Big Block 1964 300k short ram single plane--Stage 1
Stock average 247.25 CFM
Notes: This was the short ram version.
Big block Edelbrock RPM
Stock average 285 CFM
Edelbrock Victor 440 Single Plane
Stock average 314 CFM
Mopar Performance Cross Ram Max Wedge 2X4 Casting# 2402726-IM
Stock average 309CFM
Indy Single Plane-- Max Wedge Ports
Stock average 461.8 CFM
Indy Dual-Plane, 440 Port size
Stock average 326.5 CFM
Notes: This intake has terrible core shift at the gasket surface. It must be repaired/upgraded with deep port match and epoxy work.
Max Wedge Cross Ram, 440 port size, 1962-1964 style
Stock average 282 CFM
Edelbrock Torker II 440
Stock average 297.5 CFM
Weiand Team G with Dominator Flange
Stock average 296.1 CFM
Weiand Team G B/B with 4150 base
Stock average 339.5 (This is not a misprint)
Thsi intake doesn't make the power of the victor despite it's flow. Why? This intake falls into what we call the square corner intakes. The fuel/air separation is bad in them, so more power is lost in the separation than is picked up in the greater airflow. Use an Edelbrock Victor!
Holley Street Dominator B/B
Stock average 282.3 CFM
This manifold is designed for a spread bore carburetor, like the M-1. Like the M-1, your money would be better spent on the Edelbrock Victor intake.
M-1 Intake Single plane
Stock average 298 CFM
The stock 440 Victor intake, Stage 1, would be a better choice from both a cost and power standpoint. The Victor is a lower-cost way to get equal or better power.
Big Block CH4B dual plane
Stock average 273 CFM
Notes: Money would be better spent on a new RPM intake manifold.
Big Block Edelbrock 6-pack dual plane
Stock average 302.2 CFM
We have dynoed a hydraulic cammed 493 cu in with stage 1 version at nearly 700HP.
Big Block Edelbrock 2x4Bbl dual plane
Stock average 286.4 CFM
Big Block 1964 300k short ram single plane--Stage 1
Stock average 247.25 CFM
Notes: This was the short ram version.