<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: pxtx</div><div class="ubbcode-body">I would run two small air cleaners on the street and nothing at the track. </div></div>
Running naked carbs at the track is not technically legal unless they're under a scoop.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: four speed</div><div class="ubbcode-body">
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What fuel hose and ends are those?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VintageMusclecar</div><div class="ubbcode-body">FWIW, re: those air filters with the black "foam" type filter elements;
Over the last ~30 years I have serviced more carbs than I can count that were fouled by that black foam after it dissolved and "melted" (for lack of a better term) into the carb. Getting that material out of the air bleeds is a real picnic.
I'm not sure what causes this (aside from the obvious carb backfires and subsequent fires), and I've seen plenty of cars that have ran those filters w/o issue, but I feel I would be remiss in my duties here if I didn't at least post a fair warning based on my personal experiences.
Just a heads-up. Carry on. </div></div>
Backfires are probably the majority of the problem, but I wouldn't rule out fuel incompatibility. Thanks to the EPA, today's gasoline is much harder on polymers than it used to be.