You have a 360, my best 60' I posted above. It was 2.0, 1/8 8.5@86, 1/4 13.1 @ 108. I can probably shave a bit off my 60' but as I said above I've only done the 1/4 for one event. There is no track close to me anymore. So fine tuning launch rpm isn't easily available. This thread is originally about what heads are good for this setup. Will edelbrock performer rpm heads with the 65cc chamber net me hp gains. Not necessarily to get into the weeds about my pass times. This race season I'm going to try and dial it in better. But more hp is always good. Might just end up having my j heads ported, as aluminum is expensive. Does anyone have experience with putting Eddy heads on a setup like mine?