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I have a 4778 (700dp) on my roadrunner now, 440 10:1, 232-239 @ .05 518 lift on a 112 cam, tf 240’s,3.73 gear and 9 1/2” dynamic converter. Carb runs perfect no stumbling instant throttle response. Was thinking about getting a 850 annular. Car is a street crusier maybe run it down 1/4 a couple...

Just ordered a airgrabber base (69 440) it’s going on a 440 with a holley dp carb. These 2 tabs in the carb mount base I have circled don’t allow it to sit flush on carb do you bend them up? Looks like they are meant to line it up straight but not not on a Holley?

I noticed the boosters on the secondary side are a little loose on my 700 Holley. You can wiggle them side to side. What problems can this cause I have been chasing a very slight idle surge 50-100 rpm, and was checking things out it seems to run great otherwise. Thanks