o.k. why not have all engines be 146 ish cu.in. if you want to buy an $35,000 go ahead. if you want to buy a $5,000 to $10,000 ecotec type go ahead. let them fight it out on the track. if the ecotec type engine wins then the $35,000 goes away. if both engines are close i would buy the ecotec type engine.