[SEL] OT - need tune-up specs..

[jbcast at charter.net]

> TDC would seem a bit late - it's sitting at about 7 BTDC now, however that


This was when they were first starting emission controls and the retarded timing got them by for a little while, helped one area but hurt another that wasn't being checked at the time, don't remember the details. This was when you would see the dual diaphram distributors that would actually retard the timing at idle. Check your total advance if you leave it set high, you may be over advancing. A timing advance kit in the distributor would get things in order for performance.
J.B. Castagnos
Belle Rose, LA