I agree with you that an l28 can be made to go faster than an rb20det, but it sounds as though this guy is on a budget. My rb20det has cost me $3000 to fit and it has been dynoed at 265 rwhp. That's around 180 rwkw. An it is still fairly stock. How much would it cost to get the l28 to those hp levels? A lot more than $3000 I am guessing. I am just talking bang for buck here. And yeh I will one day upgrade to an rb25det my self