Trick Flow Track Heat, upper and lower intake and heads is an excellent set-up. If you have plans, to run some type of forced induction you'll want to make sure you choose a good blower cam. There is a difference between the blower cam, and the N/A cam profiles. And when your ready to rebuild it, I would either go with a Dart Block or have the stock block reinforced. If your not planning on doing the rebuild for a while, then when your purchasing your parts, I would just stock pile them until your ready. If your just adding the upper and lower intake and heads, add a 1" phenolic spacer between the upper and lower intake. And you want to change the heads, the Trick Flow Track Heat Heads flow excellent. I've seen them out flow AFR's, on a flow bench. When your ready for any machine work, have the heads ported to match the intake and intake to the heads. You want to just port the heads on the intake side, then port and polish on the exhaust side if you want to see full potential. But I would wait to do a complete rebuild, considering the mileage that's on the motor now. It would be a shame, to see anything happen to the new parts you have plans for. You know your right foot, is going to get the itch to mash the go pedal just to ease your curiosity as to how much power you just added seeing it sounds and feels SO GOOD NOW. Hold off on the right foot for a while, a good build usually takes a few years and I know you don't want to hear that. But you'll appreciate it more, if you have the patience to wait to complete the build. This is something, that your going to want to take your time with and make sure everything is done right because it's going to be a costly build. I have an 89 Notch with a 306 cu.in motor, what is invested in the motor alone is between 20-25k and it's street legal. The motor is completely balanced and blue-printed, all forged internals with custom ground Lunati cam-shaft, Dart Block 12.5:1 compression ratio, also can be tuned to run on 93 octane pump gas. The entire upper half of the motor is all Trick Flow heads and intake, complete Aeromotive fuel system. 90mm Pro-M MAF meter, calibrated for 36lb. matched injectors and the list goes on. But took over 3 years to complete, and today runs 9.90's not bad for a street legal Mustang that's N/A, Mike. SCT Tuner.:bigthumbsup P.S. There's a photo of it, in my profile photos. I enjoy building power, the old fashion way and I've been doing it for over forty years. So if you have any questions about your build, don't hesitate to ask I would be more then happy to answer any questions you have, Mike.