One thing to consider:
The bungs for the PCV and from the valve cover to the intake tube is different between the early ‘93-‘98 and late ‘99-’04 valve covers.
I’m still using the stock intake, I purchased a set of COP valve covers on eBay, sandblasted and painting to match the vehicle.Which intake are you using? I have B head valve covers with a Mach1 intake and those centrally located bungs are creating clearance problems for me.
I have a set of C head valve covers here but not sure I want to switch to COPs.