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Cool, what was your finish line rpm ? Good numbers for sure, how long have you been running 1.6 rockers ?


It was around 7200 at the finish line, I need to check it a few more times. I have been running 1.6 rockers for 4-5 years. It does take better springs to control a higher ratio, and I am pushing the flat tappet with 150 seat, 440 open.


MRMOPAR570,
I am running a lean barrel valve setting (12-14%) even though many say to run richer. I have the gray barrel valve (not the purple one) and it flows more fuel than the purple (which likes a higher leak down setting at idle). No hesitation and great results with a weird (leaner) idle setting. But on my LM-1, the idle is not lean, but James Monroe says don't pay attention to A/F at idle, only at higher throttle settings. Set it to make it work at launch and throttle response.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1