Viewsonic
Active Member
Hello all. So like the title says, how much carb is too much carb? It got me wondering if i have too big of a carb or i got something else going on.
I have a 69 sport satellite wagon. I pulled a 383/727 out of a 68 fury. It has a freshened upper end, but stock bottom end. I have an edlebrock torker intake and a rebuilt holley 4 barrel, single pumper carb. (3310-3 series, electric choke, vacuum secondary). I have gone through and verified that the points are set correctly (gapped and cleaned) and that the timing is set to 10 degrees (as per factory, for now). I have 12-13 inches of vacuum, i have size 74 jets in the carb with a 6.5 power valve, dont recall the squirters size, but i think they are a 38? I am running right close to 13.7 /13.9 air fuel ratio (as with a AF meter on the tail pipes, a little rich i know). I am at 6450ft of elevation (Rocky Mountains).
I know that mopars love a bit more advancement in the distributor, but i am still getting popping and back firing through the carb (probably ruined that power valve by now) but i have little to no throttle response at low speeds and then it occasionally stalls out. I cant even power brake the car without it stalling.
Which made me think that maybe, the carb is too much. If I remember, the 383s came with a 600 or 650 from the factory, at least for the ones who didnt have a 2 barrel.
Id love some input. Thanks.
I have a 69 sport satellite wagon. I pulled a 383/727 out of a 68 fury. It has a freshened upper end, but stock bottom end. I have an edlebrock torker intake and a rebuilt holley 4 barrel, single pumper carb. (3310-3 series, electric choke, vacuum secondary). I have gone through and verified that the points are set correctly (gapped and cleaned) and that the timing is set to 10 degrees (as per factory, for now). I have 12-13 inches of vacuum, i have size 74 jets in the carb with a 6.5 power valve, dont recall the squirters size, but i think they are a 38? I am running right close to 13.7 /13.9 air fuel ratio (as with a AF meter on the tail pipes, a little rich i know). I am at 6450ft of elevation (Rocky Mountains).
I know that mopars love a bit more advancement in the distributor, but i am still getting popping and back firing through the carb (probably ruined that power valve by now) but i have little to no throttle response at low speeds and then it occasionally stalls out. I cant even power brake the car without it stalling.
Which made me think that maybe, the carb is too much. If I remember, the 383s came with a 600 or 650 from the factory, at least for the ones who didnt have a 2 barrel.
Id love some input. Thanks.