I'm confused. The Mallory dual point has mechanical advance and no vacuum
mechanism. When you say you would not do away with the vacuum, do you mean
that the mechanical advance is not as good as the vacuum?
I haven't noticed any adverse effects. It doesn't ping under load or heat
up. It performs much better than the stock distributor, which was
undoubtedly worn out, so I won't use it as a comparison.
While the HEI may have advantages at the 6,000 rpm range, I'm not likely to
run my 235 anywhere near that, so isn't the advantage mostly theoretical?
Not that I'm a purist (I've got a T-5 in mine too, but you can't see it),
but there's something a bit incongruous about a '50s engine with a '70s-'90s
ignition.
Regards,
Grant S.
-----Original Message-----
From: ADvent@thuntek.net <ADvent@thuntek.net>
Cc: 'oletrucks' <oletrucks@autox.team.net>
Date: Friday, January 28, 2000 7:28 PM
Subject: Re: [oletrucks] Gen. - Alt. / Points to electronic
>Therer are conversion kits from JC Whitney for about 70 buck and still use
the
>stock dist. cap. I would not do away with the vacuum advance. It will heat
up
>and mileage will suffer. It can ping under load, as well. The timimg will
retard
>when there is less vacuum, usually under a load. I was getting 23 mpg with
my
>235 in my 57 ½ ton with a Caddy 100 amp alternator, not the one wire type
and a
>T5 5 speed OD trans and 235/75R15 mud grip tires. The HEI's are very good
for
>the money. Nothing can touch them as far as performance for the stovebolt.
They
>are good to about 6,000 rpm's in stock form.
>
>"G. Simmons" wrote:
>
>> Don't overlook the Mallory dual point. I have one that works
beautifully.
>> The mechanical advance means you can get rid of an ugly vacuum line.
>> Patrick's sells them.
>>
>> I haven't tried an HEI, but at the RPMs a 235 sees, I doubt it could be
any
>> better than a dual point, and they're a little truer to the period than
HEI.
>>
>> Regards,
>>
>> Grant S. gls@4link.net
>>
>> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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