lizzyfan

That issue was well over 2 years ago, he got them recently

WannaBeGearHead

Wow, that is a lot of clearance. I'm all for a safe amount of clearance but why not put bigger cams in there? .060" seems like you are leaving a good amount of power on the table.

teej281

Probably doesnt even need that big of a cam to make the power that he wants to make really.

OP, is that the vacuum tree on the back of the plenum? Or where to you have your vacuum lines for the intake tract pulling from?

97stanger

these grinds are the exact same specs as VT stage 2 blower cams, so basically just went from a stage 3 to a stage 2...also the stage 3 is way out of wack with rpm range, so this should put me in the rpm range where i want to be

I just got these cam gears a few months ago..

oxfordgt

What heads do you have and what is in your shortblock?

97stanger

MMR stage 3 heads, cobra crank, Manley 18cc pistons, manley forged h beam rods, arp 2000 bolts

Bladerunner

I know two people that had PTV contact issues with the HiTech Stage 2 cams
and it damaged their pistons and valves.
I'm not surprised you had PTV contact issues with the CMS Stage 3 blower cams
they are overkill for your set up anyway.

97stanger

^ after getting the ptv contact i realized and am happy that it actually happened b/c like you said they are complete overkill. And now I have a custom grind that will put me where I want to be

teej281

97stanger, where did you put your vacuum tree at on your plenum? Is that it on the back of the plenum?

mustangmancp

Yea can you tell us how you set up ur 6061...because im still confused on how to even make it work w/ all the vacuum lines, egr, and everything else.