Serious Q: Re: Carbs., Running moderate cammed 350 SBC |
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Serious Q: Re: Carbs., Running moderate cammed 350 SBC |
Dr. Roger |
Aug 29 2005, 12:10 PM
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#1
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
Got two vac secondary carbs (600 cfm smog carb and a 750) which I now know are in need of rebuilds.
The 600 runs but, on this heavily cammed engine, like *hit. Idle circuit has very little adjustability. And it's got more vacuum ports than I can count. The 750 is a bit too much I think for the 350. I've run 650 double pumpers with great success and am thinking about installing a 650 spreadbore. Small primaries/large secondaries. Goal here is to keep higher velocities off idle for responsiveness and, due to engine displacement, not over carb it like if I used the 750cfm. 6K redline... I'm about ready to go the the local parts place and plunk down some spare change on a new 650. WWYD? =-)) Roger Pic is the 600 smog carb....... Come hear it run.... Swap ya' for that old 650 dbl pumper..... =-))) Attached image(s) |
Dr. Roger |
Aug 29 2005, 06:31 PM
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#2
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
Great suggestions. I'd go Demon if I had no $ limits... Heck, for that matter i'd go injected if I could afford it. I just picked up a Edelbrock Performer 750 dbl pumper. $250 at Kragen plus tax. Real nice tune-ability in the primaries and the secondaries are also tunable. Manual choke so i can use the old heater wire control lever... =-) Dang it runs well now.!! Perky and responsive. Ordering muffs tonight.... Loud as hell. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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