Can anyone provide a timing advance map or other data for a LH 350 ( 1985 454 cu in). The distributor on the engine is a Delco Remy HEI / EST. I suspect it is an after market or upgrade system, since the bell housing tag on the engine has point gap and dwell specs.
I have the base timing set at 8 degrees BTDC in the time mode at 700 rpm. I end up with about 22 degrees in run mode at 700 - 1000 rpm. Seems high.
While researching this distributor I find it appears it is used in both small block and big block 4,6,8 cylinder engines. In cars, boats, trucks and farm equipment. Often the module for the distributor is the same in many of these applications (using part number info). This doesn"t seem possible. What am I missing. This application has no ECM data input (knock or oxygen sensers ect). How can one module fit so many applications. I assume the timing advance is derived from within the module using tachometer info.
clipper
I have the base timing set at 8 degrees BTDC in the time mode at 700 rpm. I end up with about 22 degrees in run mode at 700 - 1000 rpm. Seems high.
While researching this distributor I find it appears it is used in both small block and big block 4,6,8 cylinder engines. In cars, boats, trucks and farm equipment. Often the module for the distributor is the same in many of these applications (using part number info). This doesn"t seem possible. What am I missing. This application has no ECM data input (knock or oxygen sensers ect). How can one module fit so many applications. I assume the timing advance is derived from within the module using tachometer info.
clipper