Thread: Still having complications

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i understand, not meaning to be argumentative jsut trying to learn . it would help everyone out if i knew exactly what all has been done to it, i should yank it out and put the 462 in it i know whats in it lol

Originally Posted by Cooter1989

i know none of the above lol. surely it has more compression that that, i need to find a borea scope and see if i can tell if it has domes or not. did you watch the video?

you said this surely it must be more then 8.5 ? i can not tell you i do not know what you have for pistons in it ? but if flat tops and a427 with stock uncut heads it just plane can not be that with a stock deck it can be less .yes the best thing is to pull the heads off or look in the head with a bore scope and see what you have for a piston. is thats your carb on there now?? thats not a BG carb but a older 4500 dominator

i didnt mean the surely its got more bc ur wrong i ment that bc of the way its runs and sounds

Originally Posted by Cooter1989

i didnt mean the surely its got more bc ur wrong i ment that bc of the way its runs and sounds

well ok take that carb off and try something better and smaller .i do not know how many circuits that carb has but .jerry may . i used the 4500s holleys on the street for many years .but them older ones i have seen guys try them that did not have much luck with them .it could just be them on there tune ? as my 9377 .1150 cfm holley works ok for me

with the size of the needles/seat s in a demonator carb, it is easy for the electric pumps to override them

you can solve fuel pressure issues temporarily by just turning off the electric pump/s and seeing if it runs better before it runs out of gas

On a dominator you have 2 big accel pumps and a shitty linkage set up for driving--they are like a off/on switch--idle or wide open---no place in between

if this is a driver get a better carb

doesnt have the dominator on it that was an older video its has the demon on it now

soooo???????did you do any of the things I suggested?

and is it the same manifold???how did you adapt the 850???any vacume leaks around base plate?

its has an air gap on it now, i checked the power valve and lowered the fuel pressure but havent driven it yet

you already said that you lowered it to 5 #, I said 3#

The Dominator and the 4150/60 style carbs have different base patterns--did you change maniolds with the carb or use an adapter plate?

Did you change the jets like I suggested?

Out off several steps I suggested, you have only replied about one and you didn't go to my number(fuel pressure) The larger needle/seat sizes in performance carbs are easily over ridden with pressure so for trouble shooting you need to eliminate that possiblity

I saw that you have headers on the car---are they hooked into a system or are they just headers dumping at the collector?

yes i know ive already said that and i didnt get to drive it last night after i made the changes. ill try a couple changes at a time to see if i get any results. i know there is a difference in the carb bases if you go back a couple post where i posted the video i said the dominator and intake have been replaced with the demon and and an air gap. in the video it was open headers now it is hooked to 2 1/2 inch exhaust with 2 1/2 flowmasters dumped at the rear diff. if the fuel was passing the needle and seat would it be coming out of the vent and flooding at an idle?

floods comes out vent and runs into carb bores

i havent noticed any coming from the vent. seems like if the fuel pressure was to high it would act up at idle also

also drips from venturi nozzles

I'm going to withdraw from this discussion---I feel that trying one or two things at a time on something that is completely out of whack won't get the job done--I have tryed to give you a complete base line for initial tuning of this car which would put it on a positive plane to start from toward the optimun---

good luck