What’s your main and pitot jet? I think you should be around 300 and 27.5 for a starting point.
thats a low end pipe, shouldn’t be dead on bottom end. Try adjusting your slides for low level performance.
If your rich right off the bat that’s a problem.
you NEED to buy the synch tool. FAST has a sale going now. Order one today makes life easier.
lastly look up south Texas Banshee on YouTube and watch his carb synch video