http://www.supramania.com/forums/showthread.php?99476-Supra-Head-Flow-%285M-7M-1JZ-2JZGE-2JZGTE%29
1J heads barely outflow 7Ms on the intake side and everything but a 5M out flows it on the exhaust. Not sure why this rumor is still floating around.
SAFCs are fine for what they are. Did you jumper the diagnostic connector when you set your timing? Double check it if you didn't. I always ran cheap coppers (Autolite 3923s or NGKs, can't remember the number, 7 range) gapped at .025" and my car liked it.
If you can't afford a wideband right...
I wouldn't worry about the low RPM nitrous thing. However, I don't you're launch at 3K or lower, or going from lower than 3K in a roll race, so I don't know how that'd come up anyway. The scoop on that is a lot of intakes run the risk of nitrous puddling up at low RPMs. Seeing as the plenum on a...
I've put nitrous on a few different cars. Since you can't really control the timing on these without going standalone, it's kinda risky. However, if you're still running the stock 10*, you should be just fine with a 50 shot. The general rule of thumb is 1* for every 50hp of nitrous. IE, 100 shot...
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