Mechanical vs. electric fuel pump?

1 is noisy and don't take kindly to running low or out of gas very much, the other eats up about 4hp but is quite, on the other hand if the diaphrm in the mech was to leak well.... never had it happen on a mopar but a plumber friend of mine had it happen on his 327 chevy and it filled the oil pan with gasoline... he drove it till it shut off.

I bet that was real good on the bearings!

Yes don't angle them too much on the frame there or it won't work right or for very long.

Try and get the elect pump about as high as the bottom of the tank and no more.

Remember electric fuel pumps are pushers not pullers, unlike mechanical pumps pull/push.