Webber decision: IDA or IDF?

[renaissance man]

Hey Everyone,

I am replacing my intake; Weiand Stealth 8020, and Carburetor; Holley 650DP, with a new Jim Inglese 4x48 Webber Induction system. I'm trying to decide between the IDA and IDF? I am solely a street driver so I'm leaning a bit toward the IDF? In Central Texas, no need for a choke. This is on my 289 K-code. Currently sitting at 292.868 ci. Running an Isky Racing Cam:
RPM-Range 2000-5500
1.6:1 Rocker Ratio
Grind No./Type 262-Supercam Hydraulic
Low/Mid-Range Performance Cam
9.5:1 Compression
4.10 Axle Ratio

According to Jim Inglese: "The IDF units (top Picture) are both compact and extremely versatile, offering you the choice of 44mm or 48mm carburetors. The smallblock Ford 4x48IDF unit is shown here, as shipped, in standard form with no options. The Weber 48IDF packs the same punch as the 48IDA (Bottom Picture), but in a more "squatty" package. These are excellent for low hood clearance applications."

Thoughts?
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