Chris,
I have the 600 cfm double-pumper on my car and the best I have ever been
able to tweak out of it is 13 mpg.
In speaking with others more knowledgeable on the subject than I, many have
recommended a 500 cfm alternative with vacuum secondaries. The 450 cfm is
probably closer to stock though. My understanding is that if you go with
the lower volume carb with vacuum secondaries that you will experience a
significant increase in mileage without a substantial loss of performance,
but I have not had a chance to experiment with this as of yet. Hey, so it
costs you $40 in a rebuild kit for the 450. Check it out and give us a
holler as to your results. I would not throw out the double-pumper until
you find out for sure.
Regards,
Allan
B9472373
-----Original Message-----
From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net]On
Behalf Of Chris Vaught
Sent: Monday, May 29, 2000 9:01 PM
To: tigers@autox.team.net
Subject: wakiki beach
well today i took the tiger, girlfriend and her daughter to wakiki beach. it
is about a 22 mile round trip or so. i do not have a fuel gauge so i decided
to fill up before i left for the beach and before i made the trip home. i
used 3.3 gallons on a 11 mile trip! i did romp on it a couple times just for
fun. anyway that is alot of gas to be drinking when i plan to drive from
L.A. to Texas. i have a holley off of a 84 mustang, a 600 vacum secondary,
and a 450 cfm vacum secondary. which one would offer the best performance
and MILEAGE after i rebuilt it? i would hate to see my gas bill across the
U.S. in august at 4 mpg.
thanks
chris in hawaii
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