Carburators for 2x4 364 Nailhead?

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Suggestions for manufacturer and size of modern carburators for a 364 nailhead with a 2x4 barrel intake? Just want a very drivable highway cruiser.
 
Thanks for your reply. If running 2 of the the vacuum secondary carbs, would both carburator primaries run during normal throttle load then both sets of secondaries come in at the same time, or?
 
Are you using (or going to use) progressive linkage? If you are then you could run a smaller one for the rear for better milage and when you want to open it up, kick in the forward larger carb when the secondaries com open on the first carb. Tom T (telriv) has been suggesting this as a better alternative anyway.

Me personally, I am stubborn and choose to run "non-progressive" linkage on my 425 with twin Edelbrock 625 AVS Thunders. My belief is that you feed all the cyllinders equally throughout the throttle and RPM range and have 2 identical idle circuits.

Erik
 
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