I wouldn't say that it's IMPOSSIBLE to do, but it would be a lot of effort for sure to make 2 holleys work on a ModMan in my opinion.

The plenum footprint is just really small to try and squeeze two holleys on it without a unique lid and some creative CNC tapered plenum spacer work.

HardcoreB (Sean) and I have been devising a plan for months trying to figure out how to reasonably get holleys onto my new build. At the end of the day we just decided that it's getting AFB's, and if I want to run Holleys it would just be better to build a tunnel ram in the future for it.

As mentioned the box stock intake has some distribution, runner length, line of sight, issues that HardcoreB is taking action on as we speak. I certainly am in no position to brag about the intake mods yet though since it hasn't' gone down the track yet!

That said I think we have a good action plan and I will share in the future once we get some results.