I am planning to send out my midwest converter for a stall adjustment. In the meantime I was planning to run a stock converter from a 72 challenger that had a 904. Will there be a problem in terms of fittment and being able to drive the car for about 2 weeks? I have the large crank pilot and have also switch over to large pump and input shaft.

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

As long as the converter matches the register on the crank and the input shaft you should be fine.

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