Black soot feom exhaust pipes

2square · Apr 11, 2024

Hello I have a question about my newish 350 vortex engine. I have a brand new holly 750cfm carb, it seems to run amazing but I'm getting black soot on the garage floor on start up? Is it too rich? Anything helps. I posted a picture. It's equal on both sides.

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Ricko1966 · Apr 11, 2024

Probably not a big deal everytime it starts,it's rich because the choke is on.

DoubleDingo · Apr 11, 2024

Normal. Condensate being blown out the pipe. Means your exhaust is tight.

Rusty Nail · Apr 11, 2024

Yeap. I vote new motor bustin old crap out the pipes.
Reckon it'll stop??

Buck69 · Apr 11, 2024

My parents had the same issue on their garage floor when I was a little snot. It wasn't soot though....

2square · Apr 13, 2024

Buck69 said:
My parents had the same issue on their garage floor when I was a little snot. It wasn't soot though....

Haha I have a bit of rubber on my floor too! Thanks guys I'm just paranoid it's my first time building an engine and I learned from Google and this forum so appreciate the responses

Black soot feom exhaust pipes

2square

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Ricko1966

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DoubleDingo

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Rusty Nail

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Buck69

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2square

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