Hey everybody I am in need of some advice. I rebuilt my 350 and kept the stock HEI. I am thinking that I would like to upgrade, you guys understand . Well here are my specs. 350 bored 30 over 9.5to1 comp Edelbrock preformer cam and intake Carter 650 CFM Headers and 2.5in exhaust I dont feel comfotable pulling the distributer and would like to just bolt on the upgrade, retime the engine and go. Thanks for any input!