The other day I F'ed up cleaning my MAF sensor so I had to get a new one. I noticed my 40-50 acceleration is a little better,enough to notice it. O2 sensor replacement didnt seem to do anything.

My next project is my fuel filter, will that regain some lost power?

Only if it'* severely clogged.

Plugs/wires are the most common for regaining lost power.

Leaky head gaskets.

So is the best way to replace the rear spark plugs kinda like what corvettecrazys doing on the I think 17th post on this topic

http://www.bonnevilleclub.com/forum/...ic.php?t=37837

And so I wont make another topic. How do you release the fuel system preassure?

Can we make an effor to stay on topic out of respect for the topic author? Jokes are for the lounge, and I've already deleted one blatant attempt at humor already in this topic.

Back on topic.

Head gaskets are a rare case with our motors.

The catalytic converter can be bad or clogged and It could reduce HP.

To low of an octane fuel in the car or bad fuel.