7747 spark control questions.

[Walter Sherwin]

I run a 180 Robert Shaw in my BBC stuff, with a 1/8" hole drilled thru.  The
hole was mainly to help me burp "baby" when refilling the coolant system.
I compromised on this slight drop because I've got a lot of thermal mass and
cast heads to deal with.

Walt.


> Just to expand on a theme here,
> Are you running slightly lower operating temps.?.
> I've been playing with some aftermarket GN stuff and they are generally
> tuned for a 160 operating temp, and I'm using a 190, and just moving the
AFR
> a tad makes for a realllyyyyyy nice set up.
> I'm getting more convinced then ever that 190s are the only way to go.
> I know that flies in the face of what's commonly repeated as way to go
> faster, but it's just what works for me.
> Bruce


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