Frogfarmer,
You may want to verify which type of lifters has been installed, since your engine has been rebuilt. It's not uncommon to see solid lifters replace the hydraulic lifters at rebuild time.
frogfarmer - dt235sd has a point considering your engine was reportedly "rebuilt".
Here's an old thread on checking if your 235 lifters are
hydraulic or solid? Be sure to read through the whole post as Jerry (Hotrod Lincoln) has posted on target input to help you out.
