From: Brad Waller <[EMAIL PROTECTED]> > I was pretty amazed that the larger carbs did well and the small one > was not as limiting as I would have thought. This sure seems to toss > the theory and formula on it's ear. I'd say buy a 650 for a small > engine and a 750 for a larger engine, and only go bigger for high RPM > and race motors.
There's a couple good books on Holley out there and it sure helps to understand things better. It's amazing how little carb you need for some applications that don't involve high rpm usage. I'm not sure what the magazine guys consider "acceptable" for idle. (BTW: they weren't in sunny California writing that were they? Different ball game if it's 40 -50 degrees out!) Just went to a flea market yesterday where a guy was trying to sell 30 or so Holley 2 and 4 barrels. Mostly from trucks judging from the governor hardware they had on them. Funny thing was most of them looked to be no bigger than 450cfm from looking down the venturis. Big, but low rpm motors get by on small carbs. Oddly enough someone came by and bought all of them. Pete Geurds Douglassville, PA
