need help on a couple of things plz help!

[ScottnAshley]

ok i got a 92 240sx coupe 5 speed. I sea foamed it, complete tune up. new temp sensor, new fuel rail and injectors and all new engine compartment fuel hoses, k@n drop in filter, 300zx TT fuel filter. All in the last 9 months. Well if i granny drive i get ok milage sometimes 25-30. On the highway i can use a complete tank in 1 hour. Is there a huge leak or something not in working order?If i stomp it in the city i get horrible gas milage also. I did the computer check and nothign comes up... I did clean the maf and a coupel other things. Its either i need to replace something or a leak what do you think? The pluggs are white to grey more white so either its running lean to perfect. When its hot outside i get complete lag if i push the gas more than half. When its cold it runs great. Day or night runnign good or bad it gets horrible gas milage if i stomp it or on the highway. The temperture is the bar under half. It does have streaming white smoke(burning oil) head gasket is ok. No mixture of fluids. New tires and breaks and rotors. The trans hasnt had a change of fluid and they couldnt check cause teh plugg is stuck. The idle is ok at times and then sometimes jumpy. I think i told everything i can think of oh yeah the car has 148k on it. oh yeah i also replaced the gas cap rad cap and the oil cap and also has a msd without the system comtrol. stock exuast with a duel aftermarket muffler and a gutted cat.

Ok 1 more thing will a silvia trunk and wing fit on my coupe? have to mod or direct bolt on? This guy over here has one for sale but its 2 hours away. I dont wanna waste my time if it wont fit.

Ok well thansk for teh time hopefully someone can te ll me what i should do next.

[DAEDALUS]

It does have streaming white smoke(burning oil)

Streaming white smoke is either coolant or gas. Given your problems I'd say you've got one or more injector leaks. All 6 plugs look good, none are wet? You can really empty a full tank in an hour? Be careful as you could hydrolock the engine and/or ruin a cat.

[ScottnAshley]

its not burning any extra gas as the pluggs indecate. and when you use certain oils you can burn white smoke for oil. I know for a fact i burn oil and my engine isnt running rich its running lean to good. the cat is gutted. I just removed teh carbon canaster as someone said that could cause lag. Anythign else you can think of im stomped. And can the silvia trunk fit on the 92 nissan 240sx coupe? Thanks!

[quiksilvia]

trunk fits