Originally Posted by MurphyLawX169
i bought a 1050 Barry Grant Alky Dominator Carb and i know NOTHING about carbs at all ( I allways run injection)... I had it up at the grove today and my first pass was a 9.63 at 139mph (very slow) with a lil 850 carb i was going 9.40's. any way the 2nd pass it went 9.57 at 140mph still slow but very unconsitant.... there was no temp build i left a 180 and went through the traps at the same temp... but the car poped like 4 times going down the track... no temp means it is fat but the popping means it lean right?
ok ill give some spect's jettin in carb is 160 front and 164 the back. The carb has bowl exstention's front and back.. aswell as jet exstentions (onley in back)...
car spects 69 Camaro 3100lbs with a 461 alum rod motor w/bb2 xtra heads..
in my head the jets sound low b/c my old nickerson carb had 177 to 185 jets....
Any Help would be great thanks
Bob Murphy Jr
A really rich carb can give you lean conditions also. If it were mine I'd keep jetting it up untill it fell off in ET.. I'd start with 186's squared. I take it this car had a 850 alky carb on it ? If not did you change timing/plugs check float levels, pressure ? Just simple things to rule out.