6 pt bar on street car

Hello all,

I am considering putting a 6 pt bar in my 69 Dart to stiffen car up as it is a 4 speed car and now has 550 hp and 562 torque. I am fully aware that going under 11.49 requires bar, I can however slow the car down to get around that issue. My concerns about having the bar are:

1. Safety of myself and family in car during regular street use. Ie bars far enough from head in event of street accident. Is using the stock belts and bench dangerous with bar?

2. Will the power levels I'm at hurt the car on launch with slicks. ie twisting and flexing. Car has factory torque boxes and welded subframe connectors.

2. Can a proper chassis shop build a bar that is tucked completely out of way and be very inconspicuous? (Anyone have photos of their bar that is hard to see from a short distance from car). Fortunately I have black interior and mildly tinted windows.

I am on the fence, human safety is number 1, but I also don't want to twist up the car. Any real world comments and experience is most appreciated. I've been chewing on this a while.

Car is used 80% of the time on street. Running cal trac split leaf rear springs and pst 1.03 torsion bars.

Thanks everybody, man I find this site informative.