BQR280Z Posted September 29, 2002 Share Posted September 29, 2002 There was also a conversion kit available for 780 vac secondary carbs, Y-shaped secondary squirter and a gear drive setup for the throttle shafts. Actually became one HUGE one barrel, had one on a 68 Roadrunner, after tuning throttle response was awesome. Bill Quote Link to comment Share on other sites More sharing options...
Peternell Posted September 30, 2002 Share Posted September 30, 2002 For those that e-mailed recently, sorry the 650DP was spoken for long ago. Shock96 the carb I think your talking about is a 660cfm center squirter Holley list #4224 (#4223 is an 850cfm cs), Those carbs are best for dual quad tunnel ram applications. The primary opens about 10% percent then it's 1:1, 50cc pump too. Quote Link to comment Share on other sites More sharing options...
JohnG Posted September 30, 2002 Share Posted September 30, 2002 Above comments on power & response are true. I switched to vac.secondaries because I couldn't take the gas milage hit. I still have my Demon 750DP for sale. Less than 200 miles on it. Cost new was about $480. Make me an offer. --JohnG Quote Link to comment Share on other sites More sharing options...
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