Imho...
A Street PREDATOR will give the engine whatevah it can handle and take the guesswork outta all the rest.. 600 cfm to 930 cfm's each carb..I ran (2) two Predators on my Blown 383 Stroker in my 2:79 rear geared, 350TH, 1600 lb. "pail" for 3 years with no problems at all.... OK! ONE problem.. I hadda use wheelie bars even on the street..
The variable venturi design of the Predator carburetor allows it to work strictly off of the air demand of the engine and meters fuel in a direct relationship to that demand. As a result, the engine is never "under" or "over" carbureted at any engine rpm or load.
In addition, with no jets to change, no leaking power valves and no internal gaskets to swell, this high performance carburetor is relatively maintenance free.