Quadrajet info needed
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Quadrajet info needed
I have a hp 300 engine. I have read that Quadrajet made carbs with a smaller primary bore for smaller engines, 1 1/8" diameter.
Does anyone know what vehicles these came on? Engine sizes?
Thanks for the help.
Does anyone know what vehicles these came on? Engine sizes?
Thanks for the help.
Posting Guru
Joined: Feb 2010
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From: CASA GRANDE AZ
Thread Starter
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Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
Without going with the 800 cfm q.j., there are two cfm models I am thinking about using. I should say I have a h.p. 300 4.9L (305 cid) in my truck, with the horse power of a stock 2v 390.
I am looking for opinions here. Would I be better off using the smaller q.j. with the 1 1/8" bore primaries, from a 4.3L engine, rejetted, or going with one that came off a 305 chevy in a truck, with similiar displacement, pulling weight. The larger Q.jet has the 1 3/8" primary bore. I am hoping to get better mpg around town, but great power when I stomp on it.
I am looking for opinions here. Would I be better off using the smaller q.j. with the 1 1/8" bore primaries, from a 4.3L engine, rejetted, or going with one that came off a 305 chevy in a truck, with similiar displacement, pulling weight. The larger Q.jet has the 1 3/8" primary bore. I am hoping to get better mpg around town, but great power when I stomp on it.
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Joined: Oct 2006
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From: nunya
All the QuadraJet Information I have found on the Internet
Here is some great info on the Q-Jet.
Here is some great info on the Q-Jet.
Tuned
Joined: Mar 2005
Posts: 479
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From: Mesa AZ
you would probably be fine with the 800. just jet it down. even the 800 can get great milage. dont let people convince you its a pos, because its above their skill level. the qj is one of my favorite carbs. if you stay out of the secondarys, you will get great milage.
