Klocklier is probably right about the pusher pump setup. Personally though I would still do it, more fuel at WOT is more lubrication for that weak link, the VP44. I am sure all the kits are really nice that do this but if you buy your own parts and make the kit, which can be found at most ACE hardwares or hydraulic supply type shop you can do it for about $45 total cost for fittings, wiring to extend out from the stock harness and hose. Use the stock pump back by the tank on a bracket and you will see psi
I am using 1/2" ID hose the whole way (except at the stock pickup, there is about 8" of 3/8" ID) and I see 15 at Idle, 11 psi WOT with my HP setup.
Secondly, if you map it all out before you start and provided no extra trips to the parts store are needed you can do it all in about 2-3hours.