I've run electric pumps mounted on the R/R frame rail, the rear seat pan above the diff, rear shock crossmember, and rear body crossmember.
Holley blue pumps or the Carters.
All worked fine, and the "worst" location (seat pan) has worked for over 30 years feeding 1/2" line.
Most of those cars also run a mech pump, and feed up to a 540 HP Hemi.
The one on the rear body crossmember feeds a 650 HP drag car (no mech pump) from a tank sump, the others run from the factory pickup.