I am looking to purchase an 87 Buick GN with approximately 28k miles. It has a TE61 turbo, exhaust ported O ring heads and 24 L6N injectors. Would like a GN mechanic to inspect the engine for me. Any referrals would be greatly appreciated. I am in California and I would like to get a professional opinion before I fly out there and seal the deal. One question...given the above upgrades...will that be an issue passing smog? Thank you all in advance.