The new MP billet race dist have the same advance curve system as the mallory unit. Same way to adjust the mechanical advance.

Okay, I will search here again to see if Rapid Robert have post some about change the advance in the old race distributors.

The engine is dynoed with another dist. The egine want initial 15 degrees and total of 33 degrees. With this old MP dist I could choose of 15 or 33

Was surprised it even started with 33 initial. Must be the street compression... The old dist dont advance the ignition... Want initial 15 and advanced to total 33

Please help, the mechanical tach and the old gear drive distributor really does it!!