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Are you making custom runners, or is the manufacturer sending you parts to test? I would loooooooooooove if you get them to make an LS7 design with shorter runners.
You could also send over to Ironmask Airflow and see if they can cut them back like they do with the MSD.
Ran the Omega Motorsports No Fly Zone Gila Bend 1/2 mile event this past weekend.
Found out I have a bad 5th gear synchronizer and I was unable to shift into 5th gear at anything above 3000 rpm.
Ended up running out to 4th and coasting the rest of the 1/4-1/8 mile to the traps… bummer but at least I could reach 150+ in 4th with my 3.90 rear gear and 325/35/18 ET Street R’s.
JMB brought out his stock 2011 C6 Z06 but he lost the clutch master on his 2nd run and was done for the day