Garbe:
Welcome to the website!
I have one of Scheid's Street Cams in my 1996 Dodge CTD 12 valve. You can look at my signature to see what other modifications I have.
I am running a 913 pump, very large Scheid Custom Injectors, and at my most recent dyno run laid down 789 H. P. /1383 Torque on a "Dynojet 248C"
Dynamometer on just #2 diesel. Around town with my set-up, I see about 16-16. 5 MPG and on the highway about 18 MPG IF I keep my foot out of the throttle!! :-laf If I get on it alot that mileage will drop to 13-14 MPG around town and about 14. 5-15 on the highway.
I don't know if this has helped you alot or not,... ... I know my truck is a "severe case" and not "mildly" upgraded.
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John_P