After installing a set of Stg 2 heads, 1.7 RR, new wires, plugs, lifters, etc, I finally got on my car yesterday at WOT. I have the limter set at 6250 ans shift light at 6100 now and at WOT it felt like it was hitting the rev limiter before the shift light even came on, so in the 5000+ range. I know that it could be a number of things to cause this, but let me ask this.

1. If I am able to get it up to say 6100 at only part throttle without a miss, that would rule out the ignition as the culprit, correct?
2. If it does ok at part throttle, I should look at fuel pressure and possible knock retard as the next options, correct?

 

Anyone?

 

Id check the fuel pressure.....

 

I put in a 255lph Racetronix pump a few years ago, hope its not that, I'll check it tomorrow though. At least it'll be easier this time if it is since I put in a trap door for the pump.

 

It's not that. After you can't find the problem ask me then.

 

Ok, I'll ask you too, what else could it be?

It does rev ok to 6100 at part throttle, but WOT, even setting the light to 6000, it stumbles like its hitting the limiter just before the light comes on. Opti was replaced just a year ago.