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#1
10-01-2006, 02:21 AM
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Carb Tuning, Insight Please!!
okay, i will go ahead and show my lack of carb knowledge, so here goes. this is about my blower engine, 474, 6-71 on top, pretty middle of the road cam, [email protected] in, [email protected], middle .500's lifts. it idles at about 1100rpm's, no problems, but if i go any lower, for a nuce rumpity rump idle, i get the ol' surge idle. my question, is there any way to tune this out of the edelbrock 750 carbs??(iknow iknow,) they run great for me, i have an a/f meter, and they are tuned pretty good throughout the range of idle to wide open. it's just my idle rpm i'm wondering about. when it;s cold, it idles great, about 900rpm, nice and lumpy. but when i;m heated up to 180 degrees, it's 1100rpm or nothing. any lower, when i pop it in drive, and i get the surge thing going on. is this the way it is? or can i open up some idle air bleeds or the like and get a lower rpm idle???
ps, i have about 14 inches of vac at idle on the carbs now.... let me have it........ davey
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1968 Lemans/GTO clone, 6-71 blown 474ci 1969 Ram air III, Hardtop (sold it to my dad!! still care taking for it) Last edited by blown 68; 10-02-2006 at 11:47 AM. |
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