Don't feel bad. On my LS1 I use to run a Torq V2 cam, LS6 intake, 243 heads, single 3.5" exhaust and ran a 7.0 @ 102 in the 1/8th mile. After that, I swapped on Stage2 5.3 heads from TSP, swapped cam to MS3, Fast 92/92, also swapped Exhaust to a Dual 3" with an Xpipe. Could NOT get better then a 7.0 @ 100mph That was on a good day. Average was 7.1 - 7.2 @ 98. Depressing.... Dynoed 411 with the first set up. Didn't even want to know what it would dyno with all the new stuff.