I wouldn't dream of ever suggesting that you remove the TBI unit. That is one of the best, most durable, bulletproof fuel delivery designs ever created that requires absolutely ZERO user input. Ever. You won't improve upon it. This ain't a max speed race truck.. The camshaft is small however and can be run out of breath without much effort. HOWEVER, I believe that for YOU, it is completely too expensive and totally unreasonable at this point in time. Moving forward.. Cylinder head swapping CAN BE a weekend project done in the driveway. I MAY NOT be the best person to ask according to some, but on the other hand I may be. I bought a pair of Tuned Port Camaro cylinder heads I think i'll put on my truck. Everybody else says vortex this and aftermarket that but i'm not the type. Vortex heads swap is even MORE expensive and unreasonable to a budget and purpose like yours. Keep it cheap and simple. Easy.Quick. Learn how-to. Teach yourself. These other things are kind of advanced. Pick ya up a pair of GM casting #14101083 cylinder heads for as cheap as you can find em. Be patient and buy a set that was already rebuilt. $300-$400 dollars and they are direct bolt-on replacements.. they WILL make more power. But dude... That's for the parts. That job can run $5-600 easy. I suggest that you start smaller. Buy some headers. Flowtech 1.5" headers is what you want..they run around $100. Buy some VHT paint and spray em down real good. Spend some money on new spark plugs and wires, buy some header bolts, grab a hacksaw and put em on one day. You'll have fun driving to the exhaust shop with open headers to get your Flows welded up. THAT is also an improvement and in my opinion, the BEST place to start outside of a tune up with more gooder ignition parts. Hmm. That reminds me of some other super gooder post I made it one time about the bestest way to start f*ckin with your truck and ensuring you never have any money...i'll see if I can find it - later. I've got to get ready for work.