302 600 cfm 'brock issues
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Joined: Jul 2009
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302 600 cfm 'brock issues
Hello everyone,
I'm having some issues with my 'brock carb it's a 1406-1110 600 cfm eletric choke carb with no egr... It has been running like a champ since i purchased the f100 and drive it yesterday and it ran great. This morning i'm going to work and i start it up and let it run for about 10 min before i leave. on the street i live on is heavy cops so i dont open up the 4bbl up until the hwy. (3.5'' pipes w/ 40 series flowmaster) once on the hwy. I was going to pass a T/A and out of no where i hit the gas and she falls on her face... i drove to work fine but when i go to hammer it, it kinda backfires via exhast and carb...so i have afeeling its in the secondarys thus why the primary got me to work and home with out a problem. if i go past a 1/4-3/8 peddal she starts to bog out but if i accel. slow i can feather the gas and it will rev up. so does anyone know and info on this carb i cant find if its a vaccume 2nd or manual i dont see any hoses but when i mess with the throttle with the air filter off i can't see any fuel coming out the 2nd's the butterfly flaps on the primarys but the 2nd dont move at all? but i can move them via screwdriver... any help?
thanks, Brian
I'm having some issues with my 'brock carb it's a 1406-1110 600 cfm eletric choke carb with no egr... It has been running like a champ since i purchased the f100 and drive it yesterday and it ran great. This morning i'm going to work and i start it up and let it run for about 10 min before i leave. on the street i live on is heavy cops so i dont open up the 4bbl up until the hwy. (3.5'' pipes w/ 40 series flowmaster) once on the hwy. I was going to pass a T/A and out of no where i hit the gas and she falls on her face... i drove to work fine but when i go to hammer it, it kinda backfires via exhast and carb...so i have afeeling its in the secondarys thus why the primary got me to work and home with out a problem. if i go past a 1/4-3/8 peddal she starts to bog out but if i accel. slow i can feather the gas and it will rev up. so does anyone know and info on this carb i cant find if its a vaccume 2nd or manual i dont see any hoses but when i mess with the throttle with the air filter off i can't see any fuel coming out the 2nd's the butterfly flaps on the primarys but the 2nd dont move at all? but i can move them via screwdriver... any help?
thanks, Brian
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Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
The secondary upper flap only opens under load. The air flow pulls it open as needed. Sounds like maybe your fuel filter is partially clogged and starving the carb for gas.
It is a mechanical secondary (rear throttle plates open via linkage) with a secondary air flap on top that slowly opens as required to eliminate a lean bog since there is no rear accelerator pump.
It is a mechanical secondary (rear throttle plates open via linkage) with a secondary air flap on top that slowly opens as required to eliminate a lean bog since there is no rear accelerator pump.
