Since you don't state any differently, I'm going to assume that you still have the stock computer-controlled Q-jet on your car. Swapping that for a non-cc q-jet, edelbrock, holly, etc will throw a code (or several). I am pretty sure there are ways to use a standard carb and have the computer still control timing with the stock distributor, but I don't know what all that entails.
Your best bet would be to check the basics out first....make sure you are getting an adequate fuel supply to the carb, and do a quick visual inspection of the carb to make sure there is nothing obviously causing a blockage that you can see.
Quote:
Originally Posted by Jersyboyy
A holley 750 on anything smaller than a worked 383 or a seriously worked 350 355 357 IS NOT A GOOD IDEA
Your throwing way to much fuel at a 305 that got more than enough to start with.
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While a 750 Holly DP sure isn't ideal for a stock or near stock 305, remember that the factory computer controlled Q-jet was also rated at ~750 cfm
The biggest difference is the fact that the q-jet has smaller primaries for part-throttle cruising, with the larger secondaries to get a proper amount of air into the engine when you go to WOT, where as most other carbs are designed around primaries and secondaries of the same size.
- Justin