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Author Topic:   jetting vs. vacuum
johnrhonda
Dirt Roller

Total posts: 17
posted July 02, 2004 11:31 PM  
will changing the jet effect the vacuum. i have rochester 2bbl/ plugs are black. should i use smaller jet and will it effecy my vacuum?

waltonjr1
Dirt Forum Champ
Total posts: 516
posted July 02, 2004 11:33 PM  
Are they black after idleing or black after you run it and shut it down?


johnrhonda
Dirt Roller

Total posts: 17
posted July 03, 2004 12:06 AM  
black after the race

racer17j
Dirt Forum Champ
Total posts: 5390
posted July 03, 2004 12:26 PM  
no changing jet size does not effect vacuum!!!!!! valve lash will if you are runnung a solid (or roller solid) the more las the more vacuum you will have up to 2 inches more

    

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