Hey All, I am getting ready to head to SEMA this year for work and one of the things on my radar is an engine build for my personal rig. I have a 1990 GMC Jimmy with the 5.7L TBI and a 700R4 with an NP241. It is sitting on 33's and I believe it has 3.73 gears, but I need to verify that. The horsepower from this motor is incredibly disappointing, my miata had similar power to this truck. I want more power! Requirements: Reliability-this is my daily, plus I am a member of the local Search and Rescue team, and regularly use my truck for off road searches, so it has to be reliable. Power: Looking for 300-ish HP at the flywheel. I want the truck to be fast-ish. Towing: I will tow occasionally with this truck, up to 4000lbs on steep inclines, currently end up doing about 30mph up the hill and truck gets hot. CA SMOG Legal: If I didn't have to be smog legal I would throw the motor in the trash and buy an LSx. This means it needs to "look" original, EGR has to function, cat has to be CA Approved, Timing needs to be close to stock, and it has to pass a tailpipe sniff test(can probably make a custom tune for smog if necessary). Budget: Hoping to be in the $3500 range for this build, planning on putting an additional $1000 into the transmission to get it built, already have a local shop that has done 2 700r4's for me in the past, does awesome work. Current thoughts: Pull the motor and have the bottom end done, new crank, new Hypereutectic pistons rods etc. The motor has 160K Miles on it today. Figuring about $1000 for the rebuild of the bottom end. New Heads, currently looking at Summit 62cc heads, SUM-162108.(these heads are CARB approved!) New Cam: No clue which one yet, but know I will need it. Can go roller, not sure if its worth it with my relatively limited budget.(CARB Approved would be nice, but not necessary as long as timing/tune will let it pass smog) Do the "Ultimate TBI Mods" I am OK with having to run 91 pump gas from here on out if necessary. Will have a local exhaust shot build me a good free flowing system, figuring about $500 for that work. That leaves me about $1000 uncommitted, where would that $$ be best spent? I have already installed a EP241 Fuel Pump, so I have all the fuel I could ever need. I have everything necessary to do my own tuning(tuned TPI recently) but I will probably have a pro do the first tune. I welcome any input, questions, concerns, etc! I could use all the help I can get!