Thread: Holler power valves
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10-15-2006 03:51 AM #1
Holler power valves
Just been re-reading Alex Warlordy's book on Holleys "Super Tuning Holley Carburetors".
He quotes Jim Patrick of Hi Po Shop's method for sizing power-valves: get vacuum-reading at idle (in drive for auto), divide reading in half and add .5 inches. ie: 16 in of vacuum divided in half + .5 = 8.5 power-valve. That's about what Pat advises.
However, another statement has me confused: "You gain more economy from a higher number powervalve, and go richer earlier with a lower number valve". To me, that seems back to front, or am I missing something??
Chris
In our neighborhood, 2 blocks down the hill was a gas station that (to me) all the cool car guys hung out there. 32 coupes, 33 & 34 Fords as well, a sweet 56 Ford Beach wagon that was setup gasser...
How did you get hooked on cars?