Why are 3rd Gen's slower at the track then 2nd Gen's (same mods)

[BigDan]

Hey im by no means a professional but the 03+ Trucks are slow. My old truck 215HP 1999 Stock w/ DTT tranny and Edge Drag comp would run constant 14.6. I see guys with 3G's running similar boxes not being anywhere close to that even though there Stock HP is 300+ and there boxes claim 150+

When I stepped up and threw on my Mach 5's w/ the stock HX35 it was a rocket, even at 1600'

I know both make good power 500HP+ but it seems 24V's always are quicker at the track. Just a guess but Id bet my old truck would smoke a 500HP 3rd Gen at the track even though he would have 100hp on me.

Now that I have a 2003 I think I will just keep it stock to mild because it seems to take a miricle to hit high to mid 12's. Yet my old 99 w/ Mach 7's Redline box and b1/b2 twins would be high 11's and 615HP+

I not going to be racing anymore but I still wanted to know if that is true....3g's will always be slower then 24v's ??????

Any thought and input welcome

P.S Its would be smarter to build up a 12 or 24 valve if you want to be in the 12's or high 11's streetable and not insane.

Thanks