Exhaust needs a new crush gasket anytime it is removed, it should not be loose at all, unless it is aftermarket where it slides onto the flange. Look into the read cage, they should not be gapped. cracked, etc. Needle should have clip on middle notch. Where in wv, elevation varies from 200 feet to 5000. Roughly every increase of 2000 feet requires 1 lower main jet size, always plug chop to confirm. You can get a cheap set of digital calipers for $10-15 that's the easiest way to get the float perfect