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Hi guys...need some advice.
After I have installed the high cams from Tighecams (Model 876A/1163C), during the SAFC tuning stage it seems to make very good power even with CEL. Tuning is difficult as my long term fuel trim seems to drift all over the place... now its more or less ok...... But it just feels heavy during launch.... i changed the plug cables again from OEM size to 9mm, cleaned up my brisk plugs (which looked great...not running too rich or lean by color). What could be wrong...? Was guessing my exhaust is limiting me...its still OEM size with OEM muffler, with 421 extractor...can any bros advice..??
 
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