lookin to swap an ls into my 95 k1500. have a vortec with a 600 holley in the truck now. when i get time i will put the tbi back on. i have the gmpp tbi vortec intake. i used it on the truck a few years ago but pulled the engine for a different project and havent gotten to puttin it back on as i just wanted to get the truck running. its got a .480/.488 cam in it. basically want to know if it would even pay to swap a 5.3 or 6l in it. ive also got a 42 rat rod chevy p/u i would consider the swap in. any input would help.