8v-of-fury
Well-Known Member
Today, I recurved my ProForm distributor because it had the advance coming in real early and the engine would ping if you had the initial set at anything more than 5* BTDC.
So I added a strong small spring and also added an FBO Systems mechanical limiter plate.
FBO Systems
I have my initial set to 15* BTDC, the limiter plate set on 18* of mechanical. This is a total of 33*, on top of that I have the vacuum can on a manifold vacuum pulling in 12-13* at idle and cruise. With that working, the engine idles at 28-29* BTDC. Off idle the mechanical comes in a little bit and the advance is theoretically at 45* while cruising around 1800rpm. This setup seems to work very very well, I was able to re-tune the idle circuits by richening them up some to get more idle vacuum/smoothness and also able to lower the idle stop screw making the idle circuits more effective.
Just curious as to others setups? I got it good and hot and let it sit and heatsoak to where the coolant had to be up around 220f in the engine. Guage showed half on the dash, fired right up just the same as when it was set to 5* yesterday. Technically, I could stand some more initial then couldn't i? lol
So I added a strong small spring and also added an FBO Systems mechanical limiter plate.
FBO Systems
I have my initial set to 15* BTDC, the limiter plate set on 18* of mechanical. This is a total of 33*, on top of that I have the vacuum can on a manifold vacuum pulling in 12-13* at idle and cruise. With that working, the engine idles at 28-29* BTDC. Off idle the mechanical comes in a little bit and the advance is theoretically at 45* while cruising around 1800rpm. This setup seems to work very very well, I was able to re-tune the idle circuits by richening them up some to get more idle vacuum/smoothness and also able to lower the idle stop screw making the idle circuits more effective.
Just curious as to others setups? I got it good and hot and let it sit and heatsoak to where the coolant had to be up around 220f in the engine. Guage showed half on the dash, fired right up just the same as when it was set to 5* yesterday. Technically, I could stand some more initial then couldn't i? lol