CLASS RACER FORUM - View Single Post - Attn. racers running a 1955 Chevrolet in Stock.

Jim Johnston/6022 · 05-03-2022, 03:57 PM

I could never figure why G.M. listed the 55 at 180 and the 56 at 205. Might be advertising? The difference between 4 jet and wcfb is only .062 total. That would not make 25 HP difference. My late brother could never find a performance difference with the 2 carbs, if one carb was faster he would have used it. He used the wcfb on the 56 when he ran single 4. All the specs. i can find are identical. The only question is what the original head cc"s were.
cheers Jim

05-03-2022, 03:57 PM	#6
Jim Johnston/6022 Junior Member Join Date: Oct 2011 Location: delta bc-down river from mission raceway Posts: 37 Likes: 0 Liked 13 Times in 6 Posts	Re: Attn. racers running a 1955 Chevrolet in Stock. I could never figure why G.M. listed the 55 at 180 and the 56 at 205. Might be advertising? The difference between 4 jet and wcfb is only .062 total. That would not make 25 HP difference. My late brother could never find a performance difference with the 2 carbs, if one carb was faster he would have used it. He used the wcfb on the 56 when he ran single 4. All the specs. i can find are identical. The only question is what the original head cc"s were. cheers Jim