"missing" at high RPMs Options

[ninefourteener]

Greetings!!

Thanks to the Cap'n... I finally found the correct distributor cap for my car. I installed it yesterday, and the car rund PERFECT... I couldn't ask for better....

Until, of course.... I get to around 4200 RPMs.

First off, there is no hesitation... no backfiring... nothing... all the way up to 4200RPMs... the car runs just as good as my new cars.

But right at that point..... it starts to "miss" pretty violently. The car actually starts "bucking"

Not sure how to put it into text other than....

GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR (4200 rpm) RR...RRRR....RRRRR....RRRRR.

Again, no coughing, no backfiring or popping... just a bad "miss" or "hesitation".

I "THINK" it might be electrical, because at the same time.... my tachometer starts going all screwy, and flopping all over the place. Plus, it has a brand new fuel filter in it, so I don't think it's that.

I've also put a brand new coil in it recently as well.

Any ideas?????