very true, too many on Moparts think you can just bolt the heads on and go Edelbrock, Indy, Stealth...then if they have an issue they blame the mfg.

I had the spring dampers added, ported, valve job corrected, and had my engine builder clearance the pushrod holes. The Stealth heads work great and all the work that was done would have been necessary with the more expensive Edelbrocks.