Only thing different were longtubes.
if you do gears, and drag radials, im betting you’d see a low 12
You also have ASP underdrive crank pulley too.
Maybe it was that I added them at the same time, but I noticed a big difference with the headers/cats/y-pipe/intake combo. I used to be able to start rolling in first and punch it without spinning. I would just launch forward. Now if I get the car moving and floor it, I can’t get traction through all of first gear.
all of my secrets are out. 
Sorry.
Do you want to buy my cam. 800 miles on it.
Eric, most LS1’s need a cam to, to see low 12’s, headers are not enough heh. There are a few freaks, but… 99.9% of em need a cam
i got the vid…stock duall dual with qtp’s with the cut outs 410 and bgf drs also its a m6
now he has head and can as of last weekend
reason why i say this is, most Z06’s have a hard time hitting 12.0 stock, and they usually have about the same HP output as a Bolt on/Headers LS1 F-body, but weigh in about 500lbs less.
rolands car put me in the seat. a unique sounding ls1 
my car went 12.33 with no engine work,no cam,no zo6 intake just headers,asp,3.42 & stickys!
silver 2k2 what size cam ??? Im going to upgrade mine but prolly not till later this year i wanna see what i can do with mine and figure out what my future goals are. more than likely a 125 shot so the cam i have now is a decent choice
Look at my sig.
:jerkit:
im leaning toward a 228/230 i heard te gx5 or soemthign its the newest cam out thre n the lope is INSANE !
m6 or a4, if a4, what stall? what stickies? DR’s or ETs? or Full slicks?
pewter ss is a A4, Im guessing no stall and ets
3500 stall 4’‘muffflex slp header,et street & with 17’'wheel with dr radails!!!