Well put, "Holley for umph, Edel for smooth".
Usually the Edel, right out of the box, is way way too rich.
Perhaps 'Kent changed the jets and rods?
Date: Wed, 5 May 2010 12:14:15 -0400
To: jaguarsandrail@hotmail.com; keith.grider@gmail.com
From: barrie@look.ca
Subject: RE: [Mgb-v8] Holley vs Edelbrock
CC: mgb-v8@autox.team.net
Jim,
It is as I had read in a few places. Holley for umph, Edel for smooth. But I
found my Edel ran out of the box on my Rover 3.5l - maybe it is different a
little bit to the 215. I did read that BL improved the 215 as they were not
too happy about certain things. One thing I understand is that the breathing
could be improved on the Rover - so suppose that applies to the 215 ?? Toying
with the idea of having the heads gas flowed............but there is no dyno
within miles and miles of here !!! In UK there are tons - but around Toronto
I have yet to find one.
Anyway, I have now got it running (well, I chap called Kent did it - knew
exactly where what was and why on the Edel). Thanks for your response
At 11:53 AM 5/4/2010, James Bown wrote:
I have run both the Holley 390 and Edelbrock 500 on my 215 Buicks.
I have also run both a Holley and Edelbrock (properly sized) on a Ford 351 in
a boat.
Also I have had Holleys and Edelbrocks (and lots of others carbs) on a variety
of small block Chevs over the last 40 years.
Both are good.
How good depends on how much time is spent getting everything just right.
I agree, that after everthing is fine tuned correctly, that the Holley has
more topend power and the Edelbrock is better on the lowend. I've got
timeslips showing better 60 foot times with the Edelbrocks but slightly faster
ETs with the Holleys.
To that end I tend to run Holleys on my race cars and sandrails, and
Edelbrocks on my street stuff.
It isn't a hard and fast rule though.
Currently I have an Edelbrock on a modified 215 Buick in a sandrail.
Here is the interesting thing: If I didn't know which brand carb was on an
engine (assuming the carb was properly setup and tuned) I doubt I could tell
by just driving the car.
The important thing is: Spent the time (dyno time, road time, tuning time,
etc) to get it setup right.
If you don't have the time, or the skill, then you need to use the carb that
your mechanic is most experienced with.
Don't try to force your Holley mechanic to learn the Edelbrock on your dime!
Besides, unless your a drag racer, does a difference of .05 seconds in your
0-60 foot time or .2 seconds in your 1000 foot time really matter?
One thing for sure, AND THIS IS IMPORTANT, the Holley 390 will run fairly OK
on a Buick 215 RIGHT OUT OF THE BOX.
The Edelbrock 500 WILL NOT RUN OK ON A BUICK 215 RIGHT OUT OF THE BOX. It
needs different jets and rods!!!
Regards,
Jim Bown
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Regards
Barrie
barrie@look.ca
705--721-9060
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