Throttle response

Guest

A fellow Pantera owner has a throttle response problem in that when he tears into the throttle the engine has a huge flat spot..... He is running a Edelbrock 650cfm carb. with MSD ignition....... Thanks John

3/8/012:44 AM

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Original Post

Bosswrench. (Guest)

Holley 650s are nearly always double-pumpers (2 accelerator pumps). If not set up on a dyno, only the lucky will get good driveability with decent mileage from any double-pump Holley. Your friend needs a local carb expert to adjust/rejet/whatever on this unit. Or, replace it with a vacuum-secondary 600 or 750 Holley. That's as good as I can do diagnosing it by long- distance....

3/9/018:21 AM

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