My first question to ask you would be, have you been re-torquing the head bolts to 144 inch pounds, (12 ft pounds), as REQUIRED every heat cycle until this is fully broken in???...That is the usual way that the base gaskets will blow out on you...I would at the very least put some high temp silicone on those gaskets and let it set BEFORE putting them back on and re-torquing the head...But better still, I would buy some new gaskets and do the silicone rather than use the old gaskets again, but thats just me...lol.