18 Mar
2001
18 Mar
'01
12:57 p.m.
On Mon, 12 Mar 2001, Jim Arnott wrote:
IMHO, the best solution is to replace the carb with a
600cfm vacuum
secondary Holley.
I've heard that works well with some engines, but for me, it was
disastrous. Have others here found that the Holley double-pumpers
perform better in their cars? I used to have a 750 double-pumper,
then, when it wore out (case wore out, rebuild kits no longer stopped
the leaks), I replaced with a 650 (IIRC) CFM vacuum-secondary carb.;
that didn't work out well, then, I went back to a 750CFM carb., only
with vacuum secondaries. The performance still wasn't as good as it
was with the old double-pumper.
RDD
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