Okay, I'll bite on this 8 year old post in case somebody is still wondering about running this manifold on the street. I have run the factory crossram on my car for the past 6 years, first with 750 Edelbrock carbs and then with 500 cfm carbs. The motor is a 440 with 10:1 compression, a mild hydraulic cam (235 Duration @ .050, .507" lift and 108* LSA). The heads are original max wedge, ported/polished and the manifold is port matched to the heads. Msd6-AL box with an MSD Pro-Billet distributor (16* initial and 36* in by 3,000rpm). The car has an A-833 4 speed and a Moser 8.75 rear with 3:91 gears.
The carbs are set-up with manual chokes but I rarely have to use them here in Northern California. Normally, I hit the throttle once and it fires on the first or second revolution. I keep my foot on the throttle a bit for 30-60 seconds and then it settles down to a nice 950rpm idle.
Since I started tuning with A/F gauges I find myself messing more with the mixture screws trying to get the perfect settings and the metering rods/jets trying to get the perfect cruise and WOT A/F. The perfect numbers are elusive, more because of the poor quality of our 91 octane "premium" fuel than anything else. Funny thing is that after all the rod/jet/screw changes, the car runs best with the stock Edelbrock settings!
I drive my car a lot, usually 4-5 times a week and it hasn't been a problem in 6 years and thousands of miles. It ran fine with the 750s and fine with the 500s.
As far as the bling factor, if you want a lot of attention when you open the hood, a crossram will make it happen. I like educating young guys who look at my engine and have never seen anything like it. The best remark I ever got at a show was a teen who said, "Man, that's like 4 times bigger than my Honda motor."