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66starfire · 12-15-2006, 02:32 AM

Holley has a 650 Qjet replacement I was looking into (650cfm) because my friend has an early 80s I believe with a qjet (not 100% sure) and when he opened it up on the highway....it blew me away. I love that feeling personally, when the secondaries open and just dump fuel in.

Ok onto the carb area. later today (since its 3am) Im going in to talk to the guy about my carb, im trying to do everything in my power to keep this carb, so im not pitching it anytime soon. BUT seeing as at sea leve the jets should be 75, and im at 7k ft. they are at 70 primary side and 72 secondary side, the secondary diaphram spring is a purple one (dead middle of economy vs perf. according to holley) and we adjusted everything there was to adjust. But it still dumps fuel. Im not sure why honestly, the jets are right about where they should be (technically) Ill post again later today after I talk to him. my only real problem with this carb is the no choke, but its workable...just alot of pumping is involved ha.

Ok oldsguy to answer your questions as best I can:

while i was in the car hititng gas and such my friend (knows a crapload more about carbs then me...74 gremlin and 72 camino as well as multiple camaros) saw excess fuel being pushed? into the carb. also, after we drove it for about 25-30mins we took the aircleaner off and fuel was coming out the air bleeds. But also it does kill the car, and it smells of excess fuel, you could smell it while the car was running if the hood was up. Anytime I press the gas pedal, it pretty much stalls out.

Now my .02$ again. I think POSSIBLY it could be a lean tip in condition NOW, after we rebuilt it. MAYBE the jets are 2 sizes small per say, and they dont give enough fuel at first throttle to keep the car running so it dies. I was a bit worried to push it past that point until I had my friend over to look because I couldnt see what was happening and he knows more. Another problem could be that a power valve we replaced was/is defective. Not sure on that one.
What do you guys think of that? As i said im not a professor of carbs and this one really has me stumped so far. it doesnt want to coroporate. once I can get it running I can take it to the place where I dyno, and I can tune it from there se if im runnign lean/rich and such, but it wont make it there yet, im trying to get to that point.

ok now i know this is off topic a bit. My car has the throttle linkage, not cable, anyone know a place that sells a conversion? the throttle looks to want to twist rather than exert force. also there is a elec. connector connected to where it mounts to the firewall, any idea what that is?

Thanks so much for the help and I hope to have it running soon. its too nice of a car to sit in a driveway. and again i really appreciate the help. its invaluable to me.
-Scott

12-15-2006, 02:32 AM	#10 (permalink)
66starfire Member Join Date: Dec 2006 Posts: 61	Holley has a 650 Qjet replacement I was looking into (650cfm) because my friend has an early 80s I believe with a qjet (not 100% sure) and when he opened it up on the highway....it blew me away. I love that feeling personally, when the secondaries open and just dump fuel in. Ok onto the carb area. later today (since its 3am) Im going in to talk to the guy about my carb, im trying to do everything in my power to keep this carb, so im not pitching it anytime soon. BUT seeing as at sea leve the jets should be 75, and im at 7k ft. they are at 70 primary side and 72 secondary side, the secondary diaphram spring is a purple one (dead middle of economy vs perf. according to holley) and we adjusted everything there was to adjust. But it still dumps fuel. Im not sure why honestly, the jets are right about where they should be (technically) Ill post again later today after I talk to him. my only real problem with this carb is the no choke, but its workable...just alot of pumping is involved ha. Ok oldsguy to answer your questions as best I can: while i was in the car hititng gas and such my friend (knows a crapload more about carbs then me...74 gremlin and 72 camino as well as multiple camaros) saw excess fuel being pushed? into the carb. also, after we drove it for about 25-30mins we took the aircleaner off and fuel was coming out the air bleeds. But also it does kill the car, and it smells of excess fuel, you could smell it while the car was running if the hood was up. Anytime I press the gas pedal, it pretty much stalls out. Now my .02$ again. I think POSSIBLY it could be a lean tip in condition NOW, after we rebuilt it. MAYBE the jets are 2 sizes small per say, and they dont give enough fuel at first throttle to keep the car running so it dies. I was a bit worried to push it past that point until I had my friend over to look because I couldnt see what was happening and he knows more. Another problem could be that a power valve we replaced was/is defective. Not sure on that one. What do you guys think of that? As i said im not a professor of carbs and this one really has me stumped so far. it doesnt want to coroporate. once I can get it running I can take it to the place where I dyno, and I can tune it from there se if im runnign lean/rich and such, but it wont make it there yet, im trying to get to that point. ok now i know this is off topic a bit. My car has the throttle linkage, not cable, anyone know a place that sells a conversion? the throttle looks to want to twist rather than exert force. also there is a elec. connector connected to where it mounts to the firewall, any idea what that is? Thanks so much for the help and I hope to have it running soon. its too nice of a car to sit in a driveway. and again i really appreciate the help. its invaluable to me. -Scott