Ian,
The max advance should be about 36 degrees BTDC. As to the radiator, I
ended up going to a high density core after several years of the same kind of
problems. 100% cure. The high density core does not have more rows, rather it
has more of the back and forth squiggles between the tubes. This increases
the surface area. Also on an old radiator the fins have a tendancy to come
unsoldered from the tubes. So the heat does not get transfered out of the
tubes very well. If you take your radiator to a good shop and tell them you
want a high density core and add a row if they can, I expect your troubles
will go away.
keith
> Ok, so I'll start by saying my car has never run better. However I also
> have never had it on the highway before this year. Now its running so go I
>
> hate to not drive it. So this weekend I took it back to my parents house,
> about a 1.5 hour drive on the turnpike. I have a stroked 1600, with a
> stock
> radiator, cast iron head, and a 4 speed. It runs nice and cool around
> town,
> but on the highway...it gets hot like 230-240F. At 65 miles an hour I'l
> turning about 3500-3600 rpm. Interestingly it comes up to this temperature
>
> then I can drive the rest of the trip without it getting any hotter. I"m
> using an after market mechanical guage (I'm not really sure what the theory
>
> of operation is on these) but I'm guessing it is accurate. My radiator has
>
> been cleaned but not recored. What should I do? just keep driving it? New
>
> radiator? 5 Speed?
>
> One thought I had was timing. Should I check my advance at 3500rpm to see
> what it is? What should it be?
>
> Thanks in advance.
>
> Ian Miller
> 66 1600 stroker
> 67.5 1600 in need of help
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