I've got a low rpm stumble that i believe is the opti spark... but other than that... when im engaging clutch it feels like its rough to pick up, although sometimes it runs great.

in warmer weather.. the car will miss horrible in the high rpms and just runs worse all the time in hot weather.. like 75-90's.. but the cool nights the thing runs like a champ with no misses high but still some low stumble..

think i should just start with my opti spark? i tuned it up about 5,00-7,000 miles ago, wires, plugs, coil. OR is there anything else i should check first? just askin around to maybe someone else had the same problem.

Car is in sig