OK! I'll change the story in the first post so you don't have to read all the way through the thread. I WAS having a hell of a time getting a '53 flathead running right, now it's running "pretty good", but naturally, I want it to run better. The car starts, idles, accelerates, and doesn't run hot, or anything like that, it's just not very quick, and I'm thinking the Load-o-matic is my issue. Question; do all Holley 94 carburetors for Load-o-matic applications have a spark control valve (looks like a power valve) on the outside of the carburetor base. I ask, because the Edelbrock 94 on my flathead (I know...) seems to be a dead ringer copy of a Holley 94 "8BA", and all the 8BA's I've ever had DID NOT have a spark control valve. The Venturi vacuum source is present, and that "T's" into a manifold vacuum port down below the throttle blades, just no spark control valve. Will this type of setup provide the correct signal for a '53 Load-o-matic? I ask because I'm only seeing about 10° total advance with my timing light, holding the engine at about 4,000 rpm, no load. I'm not sure what it's doing with load, but I'd imagine I might have less advance, right? Aren't you supposed to have about 24° total with a Load-I-magic!?! Before I start trouble shooting the vacuum canister, I need to know that it's getting the right signal. ***ORIGINAL POST*** I need to go back to shop class...evidently. I just bought a little A project with an 8BA flathead and a brand new (like last week new) single Edelbrock 94 carb. The motor ran and the car drove ok, but was down on power, leaking fuel through the accelerator pump, and fouling plugs. After pulling out a float that was riddled with cracks and full of gas, and replacing it with another I had in my tool box, the fuel leak has stopped, but the engine doesn't want to run. I set the float height at 1-11/32", which is standard for an early style 94 (of which the Edelbrock seems to be copied), and now I can't get the motor to run without the idle speed screw cranked so far open that the idle circuit is bypassed completely. If I cup my hand over the air horn, the idle speed increases, and I can close the butterflies a little, but still can't get them closed enough to run on the idle circuit. If I close the choke "almost" all the way, the engine races. I pulled the carb apart, cleaned all the orifices, changed all the gaskets, and put it back together, with NO change. What am I missing?