Im new to tuning. Just purchased HPT. Just finished my car that already came with a tune from the previous owner/builder. The car runs well, idles fine and I can drive it with zero issues. At WOT it is very rich. In the neighborhood of 8.5 afr. I would like to start correcting this issue.
Car has many mods on the series 2. Hybrid m112 supercharger, cam, Intercooler, Northstar throttle body lq4 maf balance shaft delete. Custom heads roller rockers.
Any help in pointing me in the right direction would be appreciated