Ok here we go this engine is 9 yrs old been rebuilt 3 times over the yrs. I drive it a lot like every where i go.. Its a 67 Shelby reso mod car with a 477 in fe made just south of 600 hp on dyno runs strong Its all alum with a Shelby block eldebrock heads reworked by ron shavers its got a fast xfi injection system on it as well.OK hears the issue it has burnt oil sense day one. AND I MEAN BURN OIL . Like 2 qts every 300 miles. You look down the intake manifold you can see oil in the intake..No brainer intake leak.Well have resealed intake over about 12 times 3 intake manifolds every gasket thats made for the fe every sealer and Technic that i know.. I have been a mechanic for over 40 years.. Hell the last sealer i tried was aircraft gear sealer thats how far i have gone.. Its crazy i have had so many people look at this and just shake their head it looks like a diesel engine on the intake ports The craziest deal is the car run perfect it doesn't smoke ether does not foul plugs. There is not one port that looks worse then other...The only thing that is common on all the tear downs .The intake gasket has oil on both sides of gasket.Side note i have taken gaskets cut corners installed and measured around the ports top bottom same not even a 001 difference its square. So heres where i am at with this.It looks to me that after a number of heat cycles it starts to pull oil between the gasket the expansion of the block and heads are different or something crazy like that. So at the end of the day i have just got to the point i just drive it and pour oil in it.OK heres my next idea i am thinking about using studs instead of bolts with a fine threaded head 

 One final side note i had Lee Parr reseal it as well... Lee Parr he was carol Shelby engine builder at the Carson facility hes done over 500 fes he shuck his head in disbelief.. He said hes never seen anything like that before.But like he said most if all his engine dont get driven like i use mine.That the best hes got...        Tim R