I just installed Holley Sniper EFI in my Falcon today. Still have the A/C kick up and the wot shut off for the A/C to wire. Man does it make a difference in the way it idles.Before I had all kinds of problems trying to get the big racing carb to idle with the power steering and A/C on. Now it idles at 850 rpms and when you turn the A/C on it just keeping idling smoothly.I say smoothly I mean it stays at the 850 rpms but it still rumbles a bit.The exhaust sound good but the engine idles great for the cam thats in it.I haven't had a chance to drive it on the street yeat. I had a new driveway pored a couple days ago ,so I can't drive on it till friday.GTARoger