Some people used to use a mechanical linkage on the stock carbs to force them open before the vacum would kick in and do it, but with no accelerator pumps on the outboards you are going to have transition problems. Getting your vacum cabs set-up properly is a drastically better solution.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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