Print Page - Street hemi 426

Title: Street hemi 426
Post by: Meyer on November 28, 2020, 12:03:19 PM

They had dual quad 625's afb .... wich has the total of 1250 cfm

When installing a single 4 barrel whats the story of the needed cfm then

Title: Re: Street hemi 426
Post by: Skdmark on November 28, 2020, 12:24:27 PM

A buddy of mine has a mildly built pump gas 426 and runs it with an 850 CFM Holley.
Not sure if it is vac secondaries or not.

Title: Re: Street hemi 426
Post by: Chryco Psycho on November 28, 2020, 01:44:31 PM

Typically I go with 2x the CI so 850 -950 cfm

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