Found a wicked deal on craigslist for a 4.3 out of an 1994 astro van that is completely rebuilt, but its TBI'd . so my question is can i use the long block from the older astro and swap my accesories from my 2000 onto that engine and run it? or is there differences between TBI'd block and MPI'd block?

 

I know in the blazers 1995 and older use different cylinder heads and they don't fit the 1996 and up intakes.