Indy 360-1 vs Edelbrock RPM heads

pittsburghracer said

I have hand ported 360-1 heads and hand ported Edelbrock heads. I’ve gone 5.98 at 422 cubic inches and a .660 solid lifter cam with the 360-1 heads

I gone 5.98 at 408 cubic inches with my Edelbrock heads with a .660 roller cam.

Both heads have room to grow and Lord willing will be doing so. If I had to pick one over the other it would be the 360-1 heads but they come at a way higher price.

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This is a good example of comparing apple to apples.... what was the estimate cost difference between both??

On the Indy 360-1, i know the intake and head internals will have to be different compare to i.e if I decide to use Edelbrocks, sinceI was running Pro comps'........
But, what about my existing headers? Are the Indy's 360-1 going to fit using my existing 1 7/8 ( LA type square ) headers?