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I need to know if my 350 TBI will provide the nessisary airflow for a 383. Providing of course that i have properly machined highflow heads freely routing the air.
 

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It should. However if you have some heads and intake that will flow some serious numbers you might look into a larger THrottle body.
 

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Regarding the throttle body, I agree with Siggy. Depending on the cam you install, you may get by with just higher fuel pressure. You can get a 670 cfm TBI unit from a variety of sources. Also, chances are a custom chip will be in order.

I found a great TBI source at www.cfm-tech.com I am sure that there are plenty of other sources, but they seem to have a tailored selection for what you are attempting to do. Also check out Howell Engine Development

Best of luck with your project, Ed. www.edgesz28.com

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