...Do these things have different flywheel/clutch setups to run with say a 75 833 OD, and a bell housing for a 130 tooth flywheel? Also do the mags use a higher rate flow water pump? ANy reason to not run a magnum in my duster? Also, there is a blockoff plate to use a mechanical fuel pump. I heard something about a snout extension was needed to use a stock LA 360 mech pump? what does one look like, and where do you get it? Bret