I know i need more fuel pressure for the V8 then the stock pump will deliver. What would be a suggestion for this
This and your external pump.
swap over to a 60 series tank, and sell the 62 tank.
Or install an in-tank pump in place of your 62 in-tank pump. I would bet someone has already done it and documented it on the 60 forum. I would bet @FJ60Cam or @orangefj45 (shops that do swaps) would have a suggestion.