Looks like these below?
I personally think the tube size is to large for your combo but otherwise, they seem to offer good ground clearance and fit.
I do t know about power steering fit.
Check Holley.com and scroll on o drive to the header department.
1-7/8 is a bout right for a 550+ HP build. Looking at your combo, I think your about n easy 100HP shy.
There’s actually worse parts to put on the car that will kill tons more in power than oversized headers ever will.
P.S. Not to be a jerk but IMO, use a RPM intake.
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