Hi and welcome to Arturia forums.
Which Funk preset do you mean? In which Bank is that to be found? Even if it perhaps is possible, then it can be very hard to get the excact same sound. What's the result you don't think is good, when you edit that sound?
Do you look for the sound from the original studio recording?
I don't see ARP 2600 on the instrument list for the original recording, when i search information on the internet.
I think the original Bass sound was made on ARP Odyssey.
I don't have the sound. But i post a preset, that i've done in ARP 2600, when i saw your post. In many ways it's quite close to the original studio recording sound i think.
I also post a sligtly edited factory preset for Arturias SEM filter, that can add more color to the preset to get even closer to the original sound. Other things like EQ and other effects could also help to get the last bit. The original also went thru a signal chain and was colored even from the used mixer.