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It goes down underneath and into the vacuum hardlines underneath the intake manifold

Compression test.

I would recommend NPR pistons if you are on a budget.

I wouldn't. You need to strip it down and take the crank, rods, and block to a good machine shop.

:sadwavey: would a Walbro 255 and 12v mod help me out any?

Good thing I kept it then. Just curious, would the 12v fuel pump mod help me at all?

That's exactly what I was thinking. But is the lean spot dangerous? Will it detonate under part throttle?

3" turbo-back and intake, fuel system is all stock

Under part thottle boost, my AEM wideband will read around 15.5 for a second or two until it drops down to around 12.5. I'm a little worried about it starting out so lean under boost. AFR bounces around from 14.5-15.5 during cruising and around 10.5 at full throttle. Any ideas?

Long runners in the intake manifold = higher velocity and more torque.

Ever since I put on my Driftmotion downpipe and 3" exhaust I've been having boost creep issues. In 1st-3rd it will stay at 7 psi but in 4th and 5th it will creep up to 12 psi or so and hit fuel cut. Is there anything I can do to fix it besides putting on a more restrictive exhaust?

Maybe my springs were worn out, because it wasn't exciting at all.

I just sat the spring on the ground under my foot and took the nut off. They barely popped apart. No flying parts or injuries. The H&R springs went on by hand, no compressing.

Nice story and very cool swap

AEM dryflow filters are good too. The K&N will probably be fine though. Full 3" downpipe and exhaust is a ridiculous power gain.

With a bellmouth downpipe and 3" straight pipe my car spools to 8 psi then creeps up to 10-11.

He will bore the cylinders to precisely fit that particular set of pistons.

Might as well try them. Worse case you swap them back out.

Lotek ebay springs?

Nice supra. As for running rough, is the check engine light on?