Good for the money, but you'll pay a premium! What's your plan? XPZ is upper end, so you're right to do it right, will benefit most from Stage3 or better heads. Flow is flow... Either ZZP or Intense. I like Intense Racing better, that's just an opinion but not based on performance cause I've never had ZZP heads.
ZZP XPZ:
217/225 .352/.333 116 N/A
Old info, but good to know anyways:
ZZP's Comp Cam XPZ grind:
1. Scott Kleis w/ 425WHP (I/C, G5 m-90, ZZP Alum Heads, 9:5:1) [STD]
2. Fred Cakanic w/ 421WHP (I/C, G5 m-90, ZZP S3 Heads, 9.5:1) [STD]
3. Zooomer w/ 413WHP (I/C, G5 m-90, ZZP S4 Heads, 9.5:1) [STD]
4. ALancour w/ 400WHP (I/C, G5 m-90, ZZP Alum Heads 10:1) [SAE / Mustang Dyno]
5. House w/ 393WHP (non-I/C, G5 m-90, ZZP S4 Alum Heads, 1.7 rockers)
I found those lists to leave some pertinent information out, like exhaust size, etc.
Anyways, I go for as much as the pocket can tolerate... Lol
Don't forget to save some scratch for the Trans too ; )
