Quote Originally Posted by burnout1969 View Post
I am currently running a 555 in my FED and it is very fast but not quite fast enough to run NEI (7.60 index). The motor is a merlin block with 15:1 compression, bowtie race heads (380cc runners and ported) with a dart intake and Chuck Nyutten dominator (not sure of the size). The cam is over .800 lift but not sure of the specifics but the motor will turn 8k. My buddy has a dual dominator high rise he had on an old motor, and I think I might want to try it but have no experience with this setup and wondering if someone has some input on any power increase (if any) I might be able to get. Right now I am hovering around 8 flat so I would need to pick up 3 to 4 tenths.
thanks
Scott
Don't think I would...To me the trick to running an index car is to eliminate as many variable as possible in order to maintain consistancy and another Dominator sitting on top just doubles the chance for something to go wrong in the carb system. If it's a built carb, should have a serial number or some sort of identification that the builder put on it, first thing to do would be to get hold of Nyutten and see how many CFM it is and go from there. Also, would be good to know all the cam specs, what type of ignition, etc. Probably a lot of ways to speed the car up other then bolting on another carb....