I did the H/C almost 2 months ago, at first the car was real strong. Took it to the track with a bad fuel pump, and ran the 12.6 in my sig. Then I adjusted the valvetrain again, and after maybe a week I noticed it didnt feel as strong. Took it to get dynoed and it only laid down 264/290 . With bolt ons it did 273/304. Mind you dif dyno though.
Besides the dyno and track numbers I ran a few cars on the street before the H/C and got beat, then afterwards I was either keeping up or pulling them. Now they are beating me worse then when I had bolt ons.
I readjusted the valvetrain again, seemed to help a lil, but def not what I had when I first did the H/C.

What can I look into?
The car pulls fine, doesnt hesitate or miss a beat. Plugs look fine, as do the wires. Has a new pump with good pressure.
I have had a feeling that it could be knock/false knock? But I dont know how to tell if thats the case.
Please help.

 

Did you say it is still at the stock rev limiter?

Try degreeing the cam again?

 

Yeah still on stock shift points.
Could the cam be off somehow?
It had ALOT of tq down low, now it seems to have dissappeared : (

 

I have no idea, but it doesn't hurt to double check everything.

 

Did you say that it was tuned---because therein could lie your problemo if you aren't tuned.JMHO

 

Check your exhaust. Might be a melted cat.,or a partition in your muffler folded over. Check your coil. -Tim

 

There is no cats on the car. longtubes, y-pipe, 18 bullet muffler. No restrictions.
The coil is a possibilty, how to check if that is the problem? There is no arcing, nor does it miss at WOT.

Well I was holding off on the tune due to money. But could that have anything to do with it having power then losing it over the course of a few days? I mean that tune hasnt changed since the H/C install but the car is slower.
Thanks thus far.