head work?

The car runs ok, but you have a bit to go there even with the parts you have. If the Cuda is the typical 3600lbs with you in it the engine should be making around 350hp as it sits. That would put you closer to 12.90s if it was set up properly. My question is what is not working right? If it were me the first thing I'd do with an unknown engine is to take cylinder pressure readings off it, then pull a cylinder head. The reason being you have to know where you're starting from. I think the cam probably isnt the best, and the pistons are most likely not set to the right deck height. So the engine is lazy. So that's what I'd do. I'd bee looking for (good) pressures around 160psi. If it's lower, either the cam's off, or the pistons are in too far down in the hole. Easy fixes in both cases. You can also check the quality of the valve job. Becasue stock heads with a good valve job will make more power than average heads with porting. Porting should be the last thing you do. I dont think the convertor or rockers eed to be changed. And I think if you put traction bars on it most other Mopar owners will know you like GMs...lol. Put the leaf back in, by the multi-hole front spring brackets, and use the higher hole to drop the rea. You may need to shim the hell out of the axle to get the pinion angle back in line but that's no big deal. Then set the snubber properly and you'll get more of a jump on the Neon.