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Carb choices??? #1182317 02/19/12 10:17 PM 02/19/12 10:17 PM
Joined: Feb 2012 Posts: 6 ontario, canada R rioval OP member
rioval OP member R Joined: Feb 2012 Posts: 6 ontario, canada	I'm having trouble with my Carter 750 ('70 Bee 383). Off the line I get hesitation and an air pop noise coming from the carb but runs ok when driving at normal speed. I'm debating to go with a thunder series avs 650, or a holley?? or should I get my carb rebuilt. I've owned many mopars, big blocks, but allways had carb issues. Is it time to upgrade to a newer carb, better tech

Re: Carb choices??? [Re: rioval] #1182318 02/19/12 10:23 PM 02/19/12 10:23 PM
Joined: Jan 2003 Posts: 2,006 s. e. pa. C calrobb2000 top fuel
calrobb2000 top fuel C Joined: Jan 2003 Posts: 2,006 s. e. pa.	hi you need a heaver pump shot from what you describe! a 750 vac holley will blow that edey into the weeds !

Re: Carb choices??? [Re: rioval] #1182319 02/19/12 10:34 PM 02/19/12 10:34 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Yes need an adequate pump shot; amt/duration. Is your initial in the ballpark along w pri jetting/float levels. No vac leaks? live every 24 hour block of time like it's your last day on earth

Re: Carb choices??? [Re: RapidRobert] #1182320 02/19/12 10:54 PM 02/19/12 10:54 PM
Joined: Mar 2003 Posts: 9,108 Rogue River, OR Jeremiah master
Jeremiah master Joined: Mar 2003 Posts: 9,108 Rogue River, OR	I would guess that you could get your existing carb rebuilt and calibrated by a shop and not have to jack with the linkage, etc. to make a Holley work. If you do move over to a Holley 750 style carb I'd recommend the Quickfuel Slayer 750 Vac. Secondary. They are around $300 and you could have a shop dial it in for you. We have a 750 Carter on the '66 Coronet and it works great for it's intended purpose.

Re: Carb choices??? [Re: rioval] #1182321 02/20/12 12:24 PM 02/20/12 12:24 PM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	buy a used 750DP rebuild it and never look back. A 750DP w/ 31 squirters, 72/76 jets, 6.5PV would really wake your car up. Of you could go w/ an old school 750 vaccuum too. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: Carb choices??? [Re: Mr.Yuck] #1182322 02/20/12 12:45 PM 02/20/12 12:45 PM
Joined: Jan 2003 Posts: 3,920 n.e. pa. 6 65rbdodge master
65rbdodge master 6 Joined: Jan 2003 Posts: 3,920 n.e. pa.	i have used new holleys on all my builds and have never had a problem. i have only had one carb problem ever and it was with a rebuilt thermoquad. i was about 200 miles from home and had carb problems that almost insinerated my 70 coronet. luckily i had a few gallons of water on hand to put out the flames. i see that summit sells holley knock- offs under their name for a good price. if i were to buy a new carb i would go with one of these. there is a reason some carbs(and rebuild parts) have been discontinued and some have been copied.

Re: Carb choices??? [Re: rioval] #1182323 02/20/12 06:05 PM 02/20/12 06:05 PM
Joined: Feb 2012 Posts: 6 ontario, canada R rioval OP member
rioval OP member R Joined: Feb 2012 Posts: 6 ontario, canada	Thanks for the feedback! If I go with a new carb, what CFM, 650 or 750? Mechanical or vacumn? My motor, 383, is stock but I have intentions of a slight upgrade like mopar performance camshaft 484 lift and aftermarket cast iron heads.

Re: Carb choices??? [Re: rioval] #1182324 02/20/12 06:13 PM 02/20/12 06:13 PM
Joined: Jan 2003 Posts: 2,006 s. e. pa. C calrobb2000 top fuel
calrobb2000 top fuel C Joined: Jan 2003 Posts: 2,006 s. e. pa.	hi do like we are trying to tell you ! 750 !!! i would use the vac one if it is primarily a street car ?? drop down one number in camshafts to the 280-474 and you will not be disipointed ! 484 one too lumpy for the average beginner /tuning combo !

Re: Carb choices??? [Re: rioval] #1182325 02/20/12 10:12 PM 02/20/12 10:12 PM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	Quote: Thanks for the feedback! If I go with a new carb, what CFM, 650 or 750? Mechanical or vacumn? My motor, 383, is stock but I have intentions of a slight upgrade like mopar performance camshaft 484 lift and aftermarket cast iron heads. the 484 likes good compression, headers, 3000+ stall and 3.91+ to run right. If you go w/ a holley make sure you use like a 4.5 PV or close to it. Those cams do not pull great vaccuum.

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