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I think my timing curve isn't quite optimal, but I'd like some recommendations. My combo: 451, 10.3:1 hand-ported iron heads, QF with BLP baseplate 950 double-pumper with 1" open spacer on Edelbrock RPM, .652/[email protected] cam, premium pump gas. 4-speed (2.66 low), 3.91 rear (3000 rpm @ 60 mph)...

Can anyone recommend a fitting for my nitrous bottle that has two 1/8" NPT female ports? The bottle fitting and main line are #4 AN. I want to plumb in a pressure gauge and an adjustable pressure switch for heater control in the trunk. There are plenty of fittings with single ports like this...

I have two 10 lb nitrous bottles (from NOS) that appear to be in perfect condition but way out of date. One I bought new in the mid-90's, filled a few times, and haven't used since then. Anyway I'll need to get them DOT-recertified before filling. I believe the stamp is good for five years...