1967 Chevy Nova Oil pan

I have a nova 283 engine and I want to go back to the rear oil sump oil pan. I have a new chevy racing pan, for a nova, also have installed a new oil pump and a new pick up screen, and that's my problem. the pick up screen does not clear the pan. I have called on a new stock pan but the sump only measure about 8" I seem to need closer to 9" for the pick screen to clear?
Richard