Ok guys/ladies, I have a situation that recently developed. As some of you know I've had my share of motor problems over the past several months. Once I switched to a roller cam, lifters & rockers it solved my problems. Well, some of them anyway. I now have a bogging, backfiring issue. I am running a Q-jet, Ignitor II ignition & stock intake. I've put about 3k miles on the car since the last rebuild and just recently have felt confident enough to get on the car a bit.

First gear, no issues, idle no issuse, second gear and nail the gas, bogs down, backfires and after a few seconds it recovers and takes off like mother! Hit third gear no issues, go to fourth all is well until you get up to the higher revs. Let's say I am on the thruway doing 60mph, everything is great. Now, let's put the pedal to metal as they say, bogs down, backfires etc. and just about stalls.

Also, on ocassion you will smell gas when it does the bog down backfire routine then goes away and all is well. One last detail, tail pipes have a fair amount of black soot inside them. Run your finger around the inside of the pipe and it's all jet black soot type crap.

Can't think of any other symptoms to offer. My next step just for starters I am going to put a new fuel filter and new plugs as I have changed the oil several times since the last rebuild, but not the fuel filter and plugs and I know have almost 3k on the last rebuild.

Any ideas and or suggestions you all may have to offer would be greatly appreciated!