Was running these on my setup for a couple seasons but decided to go to m+a heads I got from a friend. They work great. Replaced the beehive springs not long ago. They have a few easy Street hours on them and 4 Dyno pulls. 1000 obo. I'd also consider trades for injectors around 160s, tr6, anti roll bar. (Copper spray on the bottom of the head in pic, not rust)