down 5 mph and 5 tenths with a vibration in motor at 2000 rpm

[desertg8]

In park I notice the vibration at 2K. In drive under moderate acceleration from 1500 on up. No internal engine noises. But I am down a ton of power. No codes except for random misfire which is normal for cammed cars. we have that turned off. i temporarily turned it back on to see if i would get any codes. could a bad balancer cost 50 horsepower? i am going to change plugs and wires tomorrow. almost like one cylinder is hurting. just weird there is no metal sounds.

could a rocker come detached from a pushrod? i would think i would get a backfire of some sort.

[locrzn#92]

Have you made any changes lately?

[wreckwriter]

Get an infrared thermometer and shoot your header tubes, see if one is colder.

[-Ray-]

If a rocker came detached from the pushrod, you will need a new mechanic.

[Devilish34]

Get an infrared thermometer and shoot your header tubes, see if one is colder.

or drip water on the primaries

[desertg8]

or drip water on the primaries

will look at all of that within the next hour. i think i need a new mechanic. nice guy. but mess ups.

[thebeast]

I've had a rocker arm come loose, you will have a very loud ticking sound on the valve cover.

[fixem2]

Having the same issue desertg8. Initial thoughts are DOD hardware, but no noises and it is turned off.

[GTX]

Check all plugs and wires. Mine ran real rough and shook the car like it had a mean cam when I installed my headers and left one wire disconnected. Maybe you fouled a plug, burned through a wire, or a wire came loose. Hopefully that's all that's wrong.

[1gr8ate]

Could be pickn up false knock?