Header Tube size.

Building a 426 big block Dodge. 10.5-1 pump gas motor. Edelbrock RPM performer heads dual plane intake AED 850 ho carb. Solid lifter Lunati cam .546/.556 with .243/[email protected] on a 110 LSA

I am looking at 1-7/8 Primary TTI Header with 3-1/2 " collector. Will that be a proper size for my combo. This motor should work from 2500-6600 rpm.