Aye bro I got a 95 celica st with a 7afe I was planning on boosting it. the engine was rebuilt it has 70 k miles with a brand new oem clutch but when it was rebuilt I think they used only rtv silicone for the head gasket I think. Do you think this will cause any problems. Also have you compression tested your cylinders I want to know because I did a dry test on my 7afe I got 130 psi for all my cylinders.