: I have a basic 225 build up with 60 off the
: head and a .448" ISKY cam etc etc. I
: KNOW chad had a problem with pinging with
: this cam BUT I dont think my CR is anything
: over 9.1:1. Could this be to bad quench? The
: pistons are way down in the hole. Its just
: at lower RPM with little gas.
:
: What I did to lessen it was to run bocsh H8BC
: (I think) plugs. That is 2 clicks colder
: then autolite 26 plugs and the stock listing
: H10BC plugs. All the slantplug listings are
: at the TOP of the heatrange scales. Anyone
: know of a even colder plug? I have a late
: head..
:
: Other then that the car runs the same on 87 or
: 94 gas. Just pings a less/none with 94.

: like?
: How much initial advance, how fast does it come
: on?
: Does it ping with the vacuum advance
: disconnected?
: Recurving the distributor may help.
: DD

: My initial guess would be to try adjusting(w/
: the hex key) the vacuum advance if its an MP
: electronic distributor.

: Now, would you want to dial in LESS vacuum
: advance...or more? I know that more advance
: = more probability of pinging, but is a
: medium-throttle/medium-load situation (going
: up a slight hill without downshifting, for
: instance, at, say, 40mph) going to cause the
: vacuum advance to increase or reduce?