[kpbrown31]

Originally Posted by Stan Weiss

Can you post what spec you are looking at for the Summit 2821? When I do a Google search it shows .470 lift. Which is the same as the 041 is with 1.5:1 rocker arms

Stan

You’re right, I was probably looking at a different cam when I saw something other than .470 lift. But you can see they still recommend a 3000 stall. I do have a 2500 laying around that I could probably put in but I was hoping to stay stock. Maybe that stall recommendation is for a 400. I bet I’m on the shy side of their 120lb of recommended seat pressure, too. Check out this page from Summit Racing https://www.summitracing.com/parts/sum-2821

I had a shop check my spring rates, combustion chamber volume, etc when they did a valve job and put new guides in but for the life of me I can’t find my notes anywhere. I recently moved and I think it was lost in the shuffle. I know they weren’t quite 120lb though

[Stan Weiss]

Originally Posted by kpbrown31

You’re right, I was probably looking at a different cam when I saw something other than .470 lift. But you can see they still recommend a 3000 stall. I do have a 2500 laying around that I could probably put in but I was hoping to stay stock. Maybe that stall recommendation is for a 400. I bet I’m on the shy side of their 120lb of recommended seat pressure, too. Check out this page from Summit Racing https://www.summitracing.com/parts/sum-2821

I had a shop check my spring rates, combustion chamber volume, etc when they did a valve job and put new guides in but for the life of me I can’t find my notes anywhere. I recently moved and I think it was lost in the shuffle. I know they weren’t quite 120lb though

Yes, I do see that.

Good question.

By looking at their cam specs, I don't see anything that is different than if you were able to buy a real Pontiac 041 cam.

Stan