The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 69 C10 l6 lack of power with 4bbl, offy intake, exh manifolds

Option13 · 08-11-2018, 11:51 PM

What did it run like prior to installing the 4 barrel?
Lot of carb pops with the single barrel before and after having it rebuilt and tuned.

What was the reasoning behind installing a 4 barrel?
12 bolt and clifford performance highly recommend a smaller 4 barrel (holley 390) and say it really helps improved the performance even with all stock internals.

Was everything brand new or used?
Brand new

Should we assume you installed it with new gaskets?
New crush gaskets

Did you check for intake leaks?
Yes, but wouldn't be bad to double check

Are all vacuum lines hooked up and all unused vacuum ports plugged?
As far as I know, but will double check as well

08-11-2018, 11:51 PM	#9
Option13 Registered User Join Date: Sep 2015 Location: Phoenix, AZ Posts: 8	Re: 69 C10 l6 lack of power with 4bbl, offy intake, exh manifolds What did it run like prior to installing the 4 barrel? Lot of carb pops with the single barrel before and after having it rebuilt and tuned. What was the reasoning behind installing a 4 barrel? 12 bolt and clifford performance highly recommend a smaller 4 barrel (holley 390) and say it really helps improved the performance even with all stock internals. Was everything brand new or used? Brand new Should we assume you installed it with new gaskets? New crush gaskets Did you check for intake leaks? Yes, but wouldn't be bad to double check Are all vacuum lines hooked up and all unused vacuum ports plugged? As far as I know, but will double check as well