72 duster 360 NA to 390 Turbo

dusted said
Thanks turbovan!
3:23 gears 275/60/15 drag radials and heads are gasket matched to the intake. Has cometic headgaskets.
While I have improved the 60ft quite a bit by experimenting with launch RPM, I’m gonna install a 2 step and see if we can improve. I feel confident the converter is holding me back. It’s a ACC boss Hogg 3200.
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What are you running for rear shocks? I imagine a 2 step should get you full boost at your launch rpm(built into the super sniper you talked about!). Does the converter stall at 3200 NA, or is that with boost?

I’m still hoping you go the s480 route at some point!