I found a WOP stage one camshaft looking to use it for a street build. Im rebuilding this motor and my original cam was in rough shape so I needed something anyway. This one came up at a good price also have pistons with reliefs to go with it. I almost had Matt do a stage one regrind for me when this cam popped up. By the time I bought a core (mine was unusable) and had Matt regrind would've had like $700 in it, I got this with the pistons for less. I hoping for some feedback from someone whos used one or tuned motors with them in it. Not sure what springs are recommended but I already have the heads done with 910's .