Did you do the job or someone else ??
Sounds like its sucking/ Leaking air, are you sure all the clamps are tight
If it was running good prior to swapping out the OEM hoses and nothing else was removed, I,d be double checking each and every fit and make sure the hoses are a nice fit on the flange before they are clamped up !!!!!
In other words check and make sure they were not too large for the given cause and they were simply squashed up hoping they would seal.
I know it is a pain in the ar*e but to rule out if they are the problem reinstall the original ones, system of elimination