Alrighty, I spent all day screwing around with the tune to get the driveability down just right. I finally got it to idle without maxxing the idle screw and it feels totally stock when under 2000rpm. No bucking, hanging idle, dying or surging :SNSign: So now I'm loading up the J4J1 MAF curve again since the stock curve killed my HP enough to where I can really feel it. I think the stock MAF curve is just too lean now. And untill I get the WB, I won't really know the A/F ratio either. BUT, I can still play with the timing. I went through the timing tables and set the spark_bdln_table to all 55 and the spark_MBT_table to 55. I stole Grady's timing tune and subtracted alittle here and there but left my max at 34° from 4k-up at full load. So what do you guys think? Is 34° max timing too much? I've seen up to 36° but the stock tune is less than 30°. Are there any good ways to get a ball-park tune without a dyno? What's the standard method of properly tuning the A/F ratio? Changing the fuel tables or the MAF curve? Grady, did you tune yours ON the dyno or tune it THEN dyno it?