To start with, I'm not a mechanic and have never played with timing at all. Having said that, I do have a new timing light.
For reference, the car is a 76 Scamp, so it came with mopar factory electronic ignition. Build thread is here: A-Body Round #2- My '76 Scamp restore... Engine internals are stock and the car has about 60k miles.
Over the winter and spring I installed a Torqstorm Supercharger, Holley 2300 Super Sniper, and a bunch of other misc items such as 1 wire alternator, dutra duals, gill welding fat pipe, etc. Also moved the battery to the trunk and used info from the forum here and installed Ford starter relay, main disconnect switch, continuous duty relay for alternator cutoff, and another relay triggered by ignition power that I will be running into the passenger compartment to connect to a volt meter, boost gage and tach backlights, etc.
I also installed the Holley Coil Driver unit. After reading that the Sniper will also control ignition, I followed some info found on various YouTube videos and forum posts and locked the distributor and removed the vacuum advance.
I've now reached the point where all of the new Sniper wiring is in and clean, and the old factory harness is in but unwrapped. There's a bunch of wires disconnected since I no longer have the voltage regulator, Mopar ignition control box, or ballast resistor. I plan to cut out the unconnected wires and rewrap the factory harness, but not until I have the car running so as not to remove anything that might end up being needed after all.
So today, after fighting the fuel pump all day and finally finding/resolving a bad ground, I was able to get the car to start. It runs for about 4-5 seconds, then stalls. I currently have the timing advance in the Sniper handheld set to 20. I do not yet have any offset values to change the timing as boost increases. At first, I had the timing advance in the Sniper handheld set at 0 as I'd read somewhere here that 0 BTDC was correct for slants, but it would only cough briefly but not run for more than a second. After about half a dozen times of running for 5 seconds or so at 20 degrees, the battery got too flat for it to start again. So now I'm letting the battery charge and will give it a try again tomorrow.
My point in typing all this is to see if anyone can give suggestions on what the timing advance and boost offset should actually be set to in the Sniper handheld? As noted, I'm not a mechanic and all my learning has been trial/error and through forums/youtube, so if something obvious should be checked, I'm all ears?
Few pics below of current status. Note that the factory harness is still unwrapped and the vacuum lines I've run are temporary and will need cleaned up yet.
For reference, the car is a 76 Scamp, so it came with mopar factory electronic ignition. Build thread is here: A-Body Round #2- My '76 Scamp restore... Engine internals are stock and the car has about 60k miles.
Over the winter and spring I installed a Torqstorm Supercharger, Holley 2300 Super Sniper, and a bunch of other misc items such as 1 wire alternator, dutra duals, gill welding fat pipe, etc. Also moved the battery to the trunk and used info from the forum here and installed Ford starter relay, main disconnect switch, continuous duty relay for alternator cutoff, and another relay triggered by ignition power that I will be running into the passenger compartment to connect to a volt meter, boost gage and tach backlights, etc.
I also installed the Holley Coil Driver unit. After reading that the Sniper will also control ignition, I followed some info found on various YouTube videos and forum posts and locked the distributor and removed the vacuum advance.
I've now reached the point where all of the new Sniper wiring is in and clean, and the old factory harness is in but unwrapped. There's a bunch of wires disconnected since I no longer have the voltage regulator, Mopar ignition control box, or ballast resistor. I plan to cut out the unconnected wires and rewrap the factory harness, but not until I have the car running so as not to remove anything that might end up being needed after all.
So today, after fighting the fuel pump all day and finally finding/resolving a bad ground, I was able to get the car to start. It runs for about 4-5 seconds, then stalls. I currently have the timing advance in the Sniper handheld set to 20. I do not yet have any offset values to change the timing as boost increases. At first, I had the timing advance in the Sniper handheld set at 0 as I'd read somewhere here that 0 BTDC was correct for slants, but it would only cough briefly but not run for more than a second. After about half a dozen times of running for 5 seconds or so at 20 degrees, the battery got too flat for it to start again. So now I'm letting the battery charge and will give it a try again tomorrow.
My point in typing all this is to see if anyone can give suggestions on what the timing advance and boost offset should actually be set to in the Sniper handheld? As noted, I'm not a mechanic and all my learning has been trial/error and through forums/youtube, so if something obvious should be checked, I'm all ears?
Few pics below of current status. Note that the factory harness is still unwrapped and the vacuum lines I've run are temporary and will need cleaned up yet.