What head is better? The reason I ask is becouse i own a set of edelbrocks with the 190 valve there off one of my old mustangs i had they were just sitting there pilling up dust so i took them to my local machine shop today for an estimate $800 thats for all new valves & seats springs to match my cam, ported & polish both intake & ehaust chambers , and he said he would check to see if they needed milled all ya allmost fogot there now gonna be o-ringed.Did i make the rite choice or are the AFR heads that much better???