jms5580
Full Member
HC 1160 ppm (should be 300)
CO 1.03 (should be 3.00)
Timing is at around 6* advance (I backed it down, it ran great around 15*. I also backed the idle screws down a little. They are at 5 turns out now. Maybe 6 before I ran it through. I have a qjet off an 85 chevy 305, freshly rebuilt with a cold air intake. Plugs, wires, cap, and rotor were all done last year. Hardly put any miles on it since then. Couldn't get it to pass with old edelbrock but I was in the 300's at one point. I pulled the plugs quick and it seems like one is misfiring. When I pulled to gap it there seemed to be a little oil? on this specific plug. I have the plugs gapped at ~.050 or so with a pertronix flamethrower coil, opened em up a little per the instructions. Truck ran GREAT before I messed with timing and screws before the test, which I know it's supposed to run crappy with these settings. I'm also running 87 octane on a 302 with no cats, truck is a 75. Any ideas?
CO 1.03 (should be 3.00)
Timing is at around 6* advance (I backed it down, it ran great around 15*. I also backed the idle screws down a little. They are at 5 turns out now. Maybe 6 before I ran it through. I have a qjet off an 85 chevy 305, freshly rebuilt with a cold air intake. Plugs, wires, cap, and rotor were all done last year. Hardly put any miles on it since then. Couldn't get it to pass with old edelbrock but I was in the 300's at one point. I pulled the plugs quick and it seems like one is misfiring. When I pulled to gap it there seemed to be a little oil? on this specific plug. I have the plugs gapped at ~.050 or so with a pertronix flamethrower coil, opened em up a little per the instructions. Truck ran GREAT before I messed with timing and screws before the test, which I know it's supposed to run crappy with these settings. I'm also running 87 octane on a 302 with no cats, truck is a 75. Any ideas?