His mods...bone stock factory ford engine, no porting, no polishing, no nothing. UNTOUCHED engine. Its all in the turbos and the tune. It also helps that he can drive like a mo-fo. He's also got weight (or lack thereof) on his side. Now, since you trapped almost identical, lets factor in cost, shall we???
First, his turbo setup ran him a little less than $5,000. Your ATI setup goes for around $3,700 plus all the fuel upgrades, tuning, yadda yadda so we'll say $4,700 is a fair estimate. Thats got him at $300 or so more than you, speaking strictly from the power adder standpoint. Now... not counting the exhaust prices since the power adders are the big HP products, and add in the cost of the cars and all of a sudden he's got you buy the ballz big shot. With the diff in the price of the cars alone, he could go out and purchase a fully built (both top and bottom end) stroked 4.2 or 4.3L and hook it up behind the twins and cut ALOT more time off his ETs. Sure you could do that, but I guarantee you with the aftermarket we have now, our built strokers can be had for much less than one for a 32v Cobra.
Uh-ohh, it all of a sudden does look like the V6 is one hell of a performance buy doesn't it????
Quit stirring the pot, jag-off. You've already beat this horse into the ground the last few days. Let it be.