Lumpy runner and boost questions

Right… a bit back I did me cambelt change and fuel pump change I can't help think whether the pump is advanced/retarded it runs ever so slightly bumpy then when I'm driving along mid revs on a constant speed it fluctuates ( kinda like kangaroo fuel ) i could put that down to fuel or maybe lift pump.....

Next question

All you peeps with big untercoolers how many of you have plumbed into the inlet fannymold to get full boost at inlets?? Or does it offer no benefit over just normal
Also those who have done this do you just block off the tee and run the pipe off inlet to the pump/boost guage or do you run the boost guage off the old setup

Cheers in advance

Lumpy running dose sound like the timing you bin fiddling with or you moved something a tooth if you didn't use locking pins

As for you turbo boost I'd post it on the main page ie disco or what ever your truck is

I changed for a new pump as old one was goosef, everything was timed up all marks lined up perfect just wondering if there were any tweaks, the only thing that it could be