Odd Noises after engine swap heard

[71-Ford-F100]

Alright so I just put in a brand new 347 stroker motor with 435 hp and 427 ft.lb torque. Previously I had a slightly improved 302 (Holley carb w/ eidlebrock intake)

In preparation for the swap I couldn't afford a new transmission, the plan is to buy one soon after however in the meantime I bought a better flexplate (ended up being the wrong size) and a better torque converter to help the transmission out (but we ended up screwing the torque converter up while trying to get it to line up with the flexplate)

Friday I got it back from the muffler shop and I started noticing a noise that I hadn't heard before with the old engine much like described in another post whenever i accelerate I hear the noise get louder and whenever I slow to a stop I no longer hear it. The truck never made this noise prior to the engine swap so I'm not sure what it could be

If it's any help I haven't heard it while Reving in neutral or park (though I haven't openly listened for it)
In the post I read it mentioned to check wheel bearings and the driveshaft, seeing as the noise started after I put the new engine in I don't see how this could be the problem but I'll give it a try.

[fordman]

Did u remove driveshaft?

[71-Ford-F100]

No we replaced a bearing several years ago in the drive shaft

[fordman]

If it only happens when moving. Then it driveshaft rearend or front wheel bearings

[71-Ford-F100]

Ok so I just got home from work and as I was driving home I kinda listened closer and found that I only hear the noise when pressing the accelerator if I let off the gas the noise ceases but once I hit the gas it resumes making the noise and the higher in the rpms I go the louder it gets, still haven't tried this on neutral as I discovered I had a fluid leak in one of my heater hoses

[tnlprt]

It would help to know what the noise sounds like

[AZf100]

If only when accelerating I would focus on the dive shaft and rear end. I Don't see it coming from the front end.

[1972hiboy]

does the noise seem more like engine speed or wheel speed? how would you describe the noise? a low tone thumping, a metal tinging sound?

[71-Ford-F100]

Definitely not timing rattle I investigated it further and was able to pin point it on the passenger side of the engine bay,

I had the truck in park and was adjusting the throttle via the carb to get a better idea of where it was coming from.. The noise is like a mild humming noise I guess would best describe it the more I pushed the throttle on the carb the louder it got.

Just a note it doesn't sound like a belt squeal its a constant note the only variation is the loudness of the "hum" Which increases as the rpms increases

[tnlprt]

Disconnect the alternator belt start it up and see if the noise is still there