I used the Pertronix kit on my '65 Nova SS with 283 and it
worked great. Looks completely stock and started up much better.
I don't know if they make a kit for sixes though.
The vacuum advance is ok for street engines. It actually adds
in more timing at high vacuum to build more power and doesn't
add any at low vacuum/high engine load. The vacuum advance doesn't
have any effect on mechanical advance (the little weights and springs
on the base under the rotor cap).
David in Dallas
> If I might chime in for a bit.
>
> My feeling is the reason to go HEI is to eliminate points all together.
>Better cold weather starting, and generally easier to maintain.
>
> Mechanical advance has it's place, but usually in the hotrodding area,
>vacuum advance adjust to engine load much better and keeps the timing more
>optimum for better fuel economy.
>
> Vacuum advance also has mechanical in it as well, vacuum advance usually
>will get you to about 12-14*'s more advance over initial setting, then the
>mechanical advance (springs and wieghts) will take over for total advance.
>
>Mike
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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