I never heard the engine run , the engine was in a samurai and I parted the samurai out, I had the receipt of the carb being professionally rebuilt. It well worth the asking price and I will ship anywhere for $20 call or text 8136791946
I think if it is a 4 barrel, it is going to be dual plane(I am 99% certain). This is a NICE intake if you are running gas, but I swapped to propane and need the 2 barrel. Someone needs to buy this. Intakes alone cost $250+/- new and you get a rebuilt Holley to boot.