I installed a blue thunder intake on my bird and when I installed the  thermostat housing with a gasket it leaked like a waterfall. I took it off and filed it trying to smooth it . I also checked the intake and filed it too. Re-installed the thing and waterfall city. Took it off and installed the housing with silicone sealant and no leak. I would like to use a gasket but dont think I can. Anybody have/had this issue ? Any suggestions?

55Birdman  Hickory NC