Listers:
I have a question about fouling my plugs in traffic.B First, the car is a
'76.B It has 9.5 to 1 compression, porting, a header, K&N filters, a
lightened flywheel, and rebuilt carbs by Kai Radicke (a year or so ago).B I
have set up the mixture adjustment so that the plugs come out "cardboard
color" on sustained highway running.B The car runs smoothly and pulls
strongly with a set of new plugs.B I use NGKs (can't remember for sure, but
BP6ES sticks in my mind).
The problem is that I live in Miami.B That means that there will be times
that I take the car on a trip, such as to my secondary office about 20 highway
miles away, but get stuck in huge traffic jams.B In fact, this happened on
Wednesday, and I didn't get out of first gear for over an hour.B Under those
circumstances, I can just feel the car run rougher and rougher as the plugs
foul up.B That day, I tried revving the car in neutral from time to time to
try to keep the gunk burned off the plugs, but it didn't help.B The only
thing that did work is that, when I finally got past the second accident and
the road opened up, I was able to get the car to highway speed for about 20
minutes and it ran OK after that.
I'm afraid to lean the mixture too much and burn my pistons with normal
highway running.B I'm thinking that a higher heat range plug might have the
same problem.B Any thoughts?
Thanks.
Michael
'76 Tahiti blue
CF 57044U
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