273 4bbl, carb replacement?

66fyssh said
That's the same build as my 66 Barracuda. What ignition are you running? What's your timing set at? You could gain some help on acceleration by increasing your timing. If it isn't advanced enough it could also run hot. I run a Pertronix Igniter II and my initial timing is set about 16*, with total timing at 36*. A rebuilt distributor also helped my idle.

When you say kinda hot in traffic, is that 200* or higher? Do you have a fan shroud?
It helps to have a hood to radiator seal and a hood to cowl seal for proper air flow.

'course it could still use a carb rebuild since it sat so long. I run a 1404 on mine and it's peppy and pulls good, especially at 3500 rpm and above!!

Running an electronic ignition, not sure what brand. Have a new hood to radiator seal in place, but gotta find a hood to cowl seal for it. Fan shroud is in place.

By kinda hot, it’ll spike up to about 210 if I am stopped in traffic for long periods, but comes right back down once I’m moving. I did bump the idle up a bit to keep the fan moving more air.

Not sure where the timing is at...gotta go but a light and remember how to time it! Used to know 30 years ago, but time has taken its toll on the old brainpan!!

Now it looks to me like it’s a mechanical secondary, or am I wrong on that?