Intake manifold change now p0430 code?? Help
 

I recently changed my intake manifold cuz of gasket leak and noticed damage and cracks , when test driving started misfiring bad, computer said # 7 cylinder misfire. Changed coil and plugs . Seems much better but still a little off , can notice slight hesitation while accelerating and crushing, also less power. Got cell and p0430 code also p0430 pd. It ran great before I changed anything but leaked antifreeze. Now cant get it right. Any help appreciated. Frustrated bbn 07 f150 guy