ok i have been working on 2 motor biulds. 1. is a mild biuld for a friend d16Z6 Block decked .20 head shaved .20 Mild port work the rest is stock but the ecu is chipped by me. (we have NO tuners in my area so it's all trial and error) all i have done with the ecu is P30 base with P28 tables and fuel caled for the 55 Psi at the fuel rail 2 is for me and is still in parts here what i have planed ZC Domed Pistons stock D16Z6 block (hoaned, new bearings, painted all that crap) the head will get P&P'ed, TI retaners, 75 Lbs seat springs, Comp cams Street Cam, AEM Gear (still learning how to set this. i can find tons on how to set a DOHC but little on a SOHC) the intake is a Skunk2Pro port matched 60MM throtlebody (still looking for this) AEM fuel rail and FPR Walbro Fuel Pump 4-2-1 Header High Flow Cat 2 1/2" catback AEM CAI K&N filter the ECU will be the sam as above but i plain on useing 58 Psi and the auto cure smothing on crom with my motor. thiss will be a DD and so i need to know some things questions i have are does any one else have a biuld like this in terms of CR? and what gas is every one running? also what kind of milage is every one getting on high CR biulds? i run 93 Octan now just don't want to have to add octan booster all the time.