Found an air leak in the billet intake. It is a 2 piece intake and seals with an o ring. I put some yamabond on it and will check it tomorrow.
pro-design intake no doubt ?
had my 34mm boot fail multiple leakdown tests, even with ultra copper sealant, finally ordered a new rubber boot for the billet base,
I believe this was done thru ATV Galaxy in cali. @ 949-863-1418
if the case bond doesn't seal it