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And were they reading correctly, or close?

Sorry my friend I told you to check your ACIS thru the rectangle cover on your intake, not clean out the AFM with carb cleaner, I know better than that from what I've read here on the forum. Check your PM messages that I sent you. Sorry if you misunderstood, I assumed that you understood...

If you go to 245/45's your speedo will still be close, as they are very close to the same height as the stock 225/50's.

I had 132,000 before doing anything to mine and the HG was fine, but I also wasn't driving it to redline and clutch drops. Want to make it last then treat it with some respect.

Granted, if it can be worked out to be a safe and easy mod, I mean if shaving the head would get you 20 more ponies at the wheels, it would be a fairly easy mod if like most have to do a HG job why not. You should get the head surfaced anyway to do a HG, why not shave it a little. But if all you...

Sounds like a lot of "ifs" and "maybes". I think I'd go the safe route and get different pistons to increase the compression ratio. That's what I did. If you are looking at a few HP to take a chance like that IDK. Just my opinion.:)

Should drain it and change it at regular intervals, no difference in performance although it might be a little quieter.

Nope:)

I would check it as it could be your problem, also have you checked the spark plug gap, needs to be checked even with new plugs before you install them. Check your rotor and distributor cap, clean your intake after the TB as it gets gummed up with PVC crap. Another thing referred to as "tune-up"...

The stock injectors weren't big enough for mine. I think I could have done with the 440 turbo's but...........

What's your timing set at and did you time it with a light?

Don't think the pipe can get porous. Have you checked the connections on the TPS and calibrated it? If you think it's a vac leak, you should get a gauge to check it.

Yes & yes. SAFC would make it easier to tune, don't think you'd need bigger injectors. You could use a FP controler and bump up the pressure, if that's the only mods you've done. If you go to boring, bigger cams etc, you'd need bigger injectors.

Could be. I think the ECU will want to still make it idle, that's why the surge. Fairly easy to set it with a meter.

Oem HG I'd go ahead and retorque it, wouldn't hurt:)

If you are autocrossing then you will burn a little, redlining, etc, normally you will even on a somewhat fresh motor. I used to do some autoxing, and the same thing happened. I've done some running at Sebring and always bring a couple of extra quarts. That's not normal driving on the street...

Torque wrenches have a long arm, doesn't feel as much. Torque your lugs and then take a regular rachet and try to loosen it, you'll see what I mean.

Have you set it with a timing light? Are you sure about all the marks lining up, cam gears, crank @"0", #1 at TDC, and rotor pointing at #1? After all that you set the timing with a light.

So what are you trying to say???

Well I can drive it in "silent" mode when I see a cop, you just feather the gas a little and I can make it sound like a Caddy:) If I drive it normal it's not too bad, just when I go any were close to 1/4 throttle it starts to get a little loud. full throttle sure doesn't sound like a 7M:naughty: