Magnum engines in A-bdy ???

67Dart273 said

If you are going with multiport EFI you probably do NOT want a dual plane intake. I think ?? M1 comes with bungs, I have not paid much attention.

What are you planning to use for a transmission?

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There was the M1 MPI, but it seems like they're scarce enough anymore that converted carb intakes are more common these days. As 273 said- DP's not necessary. I have a single-plane M1 MPI on a 408 and even with the carb it idled great with loads of bottom end with a 2000 stall and 2.45 gears.