p@p and if your could find a cam for a dual spark plug set up that would help alot

 

the heads swap aslong as your2.3l is the dual plug i belive they you can swap many things from the 2.3 to the 2.5 as well if you gonna turbo the 2.3 rods are alot better you can use those rods if you swap the crank from the 2.3 and forge the pistons