would I need to trim the edge of the block and valve cover for the tial to fit?

 

shouldnt have to but some times its necessary.

 

what about with the maxrev manfold?

 

i've never heard of having to shave the block or valve cover to clear the wastegate, it should clear those area's fine.

only place i've heard of clearance problems are with the hood. if that happens, get/make an elbox that will turn the wastegate on it's side.

 

max rev mani no mods required. old style yes now wategate sits farther up.