228/230/571/573 Xer
 

Wondering who is running one? I am going to on a 112 due to the recommendation of Brent @TEA along w/ their 5.3 1.5 heads milled at 0.01. It is going to be coupled with a 4200/2.35 stall, 373's, Fast 90 Intake, NW TB, TSP 85 mm lid, SLP 85 mm MAF, Kooks 1 3/4 headers and Y Pipe, and the rest of the boltons in my sig. Just wondering what everyone thinks of the cam.

The 571/573 sound like the XE lobe, not the XE-R. The XE-R has .588/.592 valve lift.

Possibly. That would idle like the stock cam with cutouts, doesn't it???

It says XR on the cam card.

there are xr and xer lobes.

It is just the extreme lobe, I misspoke.

This cam has been one of the top performers with our heads on our dyno.

That is a good cam but the lobes are XE not XER. See sig below. Neither the XE or the XER idle anything like stock.

not on a 112.