gen5 block

The only thing I can think of is that the lifters dropped down too far into the block. Either the cam has too small of a base circle or the lifters are the wrong match for the cam.
A Gen V Block does have the shorter lifter boss and requires "retrofit" roller lifters.

Do you have a lifter valley tray?

no, and no screen, here is a picture of the lifters put in upside down, I wonder if this could have happen, picture from another thread

I can't imagine the engine would run...
How would you install the push rods?
The cam would surely get eaten up too...

Hey Eddie,
I e-mailed you back with Desk Top Dyno number, but your spam blocker kicked it back.
Do you want me to post here or PM you?

Thanks Pat, I found it in a Junk File, Picked up engine last night, replace with Isky lifters $600+ although I don't think it was a problem with the lifters, Hope to get it back in the boat sometime today.

Eddie

Good luck Eddy!!