Quote:
Originally Posted by itslow
What the heck carburetors are you trying to put on your flathead intake?
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I was trying to get more performance by using a 4 bbl manifold, but both manifolds I have were made for the 4 bbl carbs from the 50's, the small base Carter WCFB and Rochester 4G, again small base. These days they are rare, and to date I have only found a couple but they were the larger bore, higher CFM, not ideal. I could buy the adapter plate but again, a new Holley 390 is $1100 here, and used ones aren't around.
Ken, your lean out issue, is it possible the injectors were too high flow rate? I have read if the injectors are too small they max out on duty cycle and can't provide enough fuel, maybe the same happens on the other end...Just a thought.
Cheers