Hey guys I have done all of the ultimate TBI mods, Open element, Headers and 2.25 Dual exhaust, Timing advane (6 deg.), Full tune up, ETC> Shift kit....

I am looking for something thats not going to kill fuel mileage or cost over 500$. I want to make this motor to 250-275 HP. That is my final goal. I think it should be easy to get there but I have been wrong before.

I am looking at a mild cam that will drop in ( I know nothing about springs or valves... )

Or a Set of good heads. Like Double hump corvette heads.

I am looling for something I could install in a good shop with lifts and stuff In a day. I dont want to spend much money but wat to make this my final reach for 250-275 HP...

 

Look into the LT1 cam swap guide. Should get you too 200-240ish hp range and shouldent cost more then 200$.

 

Sweet, Looks like a lot of work But if Its worth it I am willing...

 

have you done tuning yet if not that would be the next step and for sure a lt1 cam

 

Nitrous. That's the only way without really doing much of anything else.
Now if you want to make more power on the fairly cheap......

port your stock heads or get some 059 vortecs or ZZ4 heads off ebay
88-89 L98 cam or 93-95 LT1 cam
96+ 4.3 s10 converter
and the EBL flash ofcourse.

You should see your goal quite easily.