I googled the grind and got the link below. It looks like a nice bump in performance over stock, but recommends 9.5:1 compression, so it'll be a 91 octane motor.
http://www.pbm-erson.com/Catalog/Erson/Camshafts/Hydraulic Roller-Late Model Step Nose_E/ERSE119700
Wow! That’s awesome! Thanks for the help! My original plan was to run the stock fuel injection setup with the upgraded spider injectors vice the poppet style and probably a slightly larger fuel pump with an adjustable fuel pressure regulator under the hood.
I think that I’ll still be able to do this but I originally was thinking I’d get it running on the black box, then swap to a 411 PCM and pay someone, probably like Blackbear Performance, to help me tune it. But now I’m thinking that it’ll run like trash probably on the black box because it’ll constantly be trying to recalibrate or recalculate since it going to be a fairly rough and choppy idle based on the cam.
But also, I guess I need to research what the stock L31 Vortec compression is. Because all I did to the cylinder/combustion port was a slight surface decking on the block and heads and basically stock style domed pistons that are .030 over. So I’m not sure I’ll be at 9.5:1 compression with that setup.
My goal was to not carb swap it and keep the stock injection to keep the functionality of the OBD-II and be able to dial it in with tuning vice carb jet changes. Maybe my plans will have to change.
If I knew I was going to end up losing the factory injection I would have just built it as a stroker.
Ideas?
Thanks again guys! This is all awesome and amazing help!
1995 Z71 standard cab stepside
Swapping to 1996 Vortec OBD II