Minnesota Classic Glastron Forum
General Category => General Discussion => Topic started by: fireman24mn on May 25, 2017, 11:02:37 AM
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What is everyones opinion on carbs. Holly? Rochester? Edelebrock? Etc.
I need to get a carb for the 23, the donar boat only has a 2 barrel so that won't work. I will be putting it on a 383 with about 360 hp.
Thoughts/ recommendations?
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Qjet would be my first choice.
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I know Red really liked the Edelbrocks. I always been more of a Holley guy never had one for a marine motor.
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Qjets come in 750 and 800 cfm models. Your mouse at 6000 rpm will consume about 665 cfm. Roughly 100 cfm less at 5000 rpm. (CID*RPM)/3456. Spreadbores have an advantage by having small primaries for excellent response, and large secondaries for WOT. Economy and top end power.
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I prefer Holly because that's what I'm most familiar with. Mike makes a good point about the balance of economy and power with the Q-Jet's small primary and larger secondaries. I've never run an Edelbrock but they seem to be similar to the Q-jet. For me Holley's are a little easier to tune. With their needle jets Q-Jets remind me of a big snowmobile carb. Q-jets have a bit of an unfavorable reputation because tuning the needles is unfamiliar to some people. In my opinion this reputation is undeserved, as a properly tuned Q-jet is a fine carb. In the end it boils down to the proper size (the biggest is not always the best ) and what you're most comfortable working with. For me an electric choke and vacuum secondaries would be the options of choice on a marine carb.