So I have a set of doug headers right now currently on my Challenger just now getting around to putting the engine together I've got fully ported aluminum Edelbrock heads flowing 300 CFM at 500 lift on my 340 with 904 trans built by cope. I would really like to upgrade my oiling system to the pro touring pan however I'm not sure if my doug headers would have clearance issues . I wouldn't mind spending the money on TTI headers given I think my build would really benefit from a 1 and 7/8 long tube headers however I'm not sure of a header that will clear for aftermarket oil pans such as the pro touring pan I'd love to put on my car. Has anyone run into fitment issues with TTI and Doug headers for aftermarket oil pans in this case the pro touring version. Is a guy running 1 and 7/8 headers stuck with running stock oil pans?