Another header ? for smallblock

I have Indy/RHS heads on a 73 340, with the W2/standard LA, exhaust bolt patterns. Planning on buying TTI headers, and was wondering if there was an advantage to running the W2 headers, vs. standard LA headers. The cost is the same, tube diameters are also the same. Any and all thoughts welcome.
BTW, 73 340, in a 67 Barracuda FB, 10:1 compression, LD340 intake, Holley 750 w/vac secondaries (will upgrade to a DP), .507I/494E lift, 243I/257E @ .05" duration cam, auto trans w/3000 stall convertor, 3.91:1 rear gears. This is mostly a street car, with an occasional pass at the track to see what it'll do.
Thanks, Steve