So I have been getting a hesatation problem @ full throttle. I replaced my fuel filter, wires,plugs (replaced with Bosch Platinum) air filter. It seems when I let off a little, it stops, almost like its starving for air. This mostly happens after 4k RPM. This has been an issue for awhile, which is why I did some simple tune up crap. Its not a pluged CAT, cause I needed 300HP so I gutted it. The muffler isnt pluged, its new, I just rebuilt the engine. Almost feels like an over torqued rocker arm, as if its keeping the valve springs too tight, but they are non adjustable..SO any help would be appreciated.

Possible fuel pressure problem maybe?

 

Has this been happening ever since you rebuilt it, or did it just now pop up again?

 

After the rebuild. I am thinking the cam is wiped out. Had a little issue with a roller lifter turning in the vally and the cam shearing the roller in half.

 

My next question was about the cam, and whether or not you touched it during the rebuild.

 

yeah well..... that would do it.

 

totally liveable. Dont feel like dropin 5 hunny on a cam. And before any one says "5 hundred, I can get one for $$$$" If I am gonna put in a new cam, its gona be an upgraded cam. which I have priced for $300+. Then when you factor in new valve springs, gaskets and other crap, its close to $500. Maybe Santa will give me the cam from his sleigh.

 

Are you having any misfires at idle or anything? if a lobe was wiped you would definantly get a misfire and not just at WOT, all the time.

 

check your fuel pressure regulator