Intake Manifold Dilema

I doubt whether you'll be able to tap the same size that was there if you have stripped the threads. You'll have to drill out to next larger size and then tap, finishing up with a larger male nipple and reducing it back down, or find a nipple that has the outside diameter that matches your hose. This is only if you are going the tap route. May be better off as stated before, update to a better unit. Mike