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red82gt · 04-13-2003, 02:33 PM

You want the left side one, it won't pull a vacuum at idle but wil once the throttle blades are open. The other one is straight manifold vacuum.
What did you have on it before? I recently got rid of my 625 Carter for a holley 650 dp, lost a mpg or two but there's no comparison performance-wise. I had no problem getting good driveability out of the carb but max performance was tough to find with the carters.

04-13-2003, 02:33 PM	#5
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	You want the left side one, it won't pull a vacuum at idle but wil once the throttle blades are open. The other one is straight manifold vacuum. What did you have on it before? I recently got rid of my 625 Carter for a holley 650 dp, lost a mpg or two but there's no comparison performance-wise. I had no problem getting good driveability out of the carb but max performance was tough to find with the carters. __________________ 393W: AFR 205's, hydraulic roller, TKO600.