Reply to "650 holley a good replacement"

George PAdmin.

Got to be careful you're not confusing a carb that's not tuned properly for a carb that's too big. although in this case I would agree the 850 is too big for a standard displacement 351C motor in a mild state of tune.

I would recommend a Holley carb in the 700 to 750 cfm range. The 600s & 650s will trade off a little bit on top for a little more signal at the bottom.

The carb & ignition have to be tuned properly for your motor to run without flat spots through out the rpm range. Having made that warning, I've seen the 750 Holley work on Cleveland motors in states of tune from mild to wild; from 300 bhp to 500 bhp. The Cleveland is not a small block Chevy, it likes a much bigger carb. This recommendation is as old as the Cleveland motor itself.

There are several choices of Holley in that size, vacuum secondaries or double pumpers, manual chokes or electric chokes, street avengers, HP series, street tuned HP series, standard series.

cowboy from hell

3/6/0712:27 AM

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