"New" guy

[Fast355]

Interesting. But are we talking about the same cams? The Lunati numbers currently published for the 20080660 mentioned above show a dual pattern cam with 279/287 advertised duration and .477"/ .502" lift with 1.6 rockers.

http://www.lunatipower.com/ProductGr...?id=261&cid=59
https://www.summitracing.com/parts/lun-20080660

Lunati's 20120120 looks like it is a good match for the GM HOT cam:
http://www.lunatipower.com/Product.aspx?id=3161&gid=337

The 2nd cam you listed looks like the same grind, but for a retrofit roller application. Mine is for a stock roller cam setup. Lunati has updated the part number to 20080130 from 10030.

http://www.lunatipower.com/CamSpecCa...rtNumber=10030

GM Hotcam is 279/287* advertised at lash point.