Rochester carb jets

Yukonmuscle

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Joined
Jul 21, 2011
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70
I have a rochester 4 barrel that came off a 5.0 and want to put it on a vortec headed, comp cammed 350 that I have redone. What changes do I need to make to get this carb set up. What jets/ changes are needed? I can't seem to find a jet/ rebuild kit online to make this work
 

alldodge

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Mar 8, 2009
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Re: Rochester carb jets

I have a rochester 4 barrel that came off a 5.0 and want to put it on a vortec headed, comp cammed 350 that I have redone. What changes do I need to make to get this carb set up. What jets/ changes are needed? I can't seem to find a jet/ rebuild kit online to make this work

Took a standard 5.0 carb and put it on a 5.7 with a comp cam. Not knowing exactly what size the carb is, I'm not sure it's possiable to encrease the jet sufficiently enough to provide the CFM needed to support the install. Thinking you need some where around 700 to 750 CFM to run the 5.7 and the carb throat may only be able to supply 550 to 600 CFM. May need to look at another carb
 
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