motor parts need some help!!!!
-Mahle rings, new bearings
-Stock pistons and rods w/ ARP rod bolts
-98 casting heads w/ 918 comp springs
-comp hardened pushrods
-228/230 .579/.581 w/ 112+4 LSA
-Melling ported oil pump, new pickup tube
-new timing chain and gears
-LS6 intake
-MSD wires
-SLP Headers, B&B Triflo catback w/ e-cutout
-HP Tuners tuned
i wanted to put new lifters, rockers, and springs but i wouldnt want to buy stock ones and put them in could someone help me out and tell me what i should get it is a DD so NOT knowing ALOT about motors I dont know if changing any of them will drop my mpg. So yeah its not a race car but id like something thats better then stock but not a drag car

