Years ago I ran a small 1 gallon cell where the battery used to be on my cuda. Mounted a Holley blue pump underneath and fed a plate system w/ it. It worked good, but I wouldn't do it again.
I'd "T" into your current system ahead of your carburetor regulator and feed a separate nitrous only regulator from there. It'll be a much cleaner looking setup IMO.
AS far as comments about the size of the cell...A 1/2 gallon would last a LOT longer than you'd think w/ a small shot.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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