Originally Posted by
MBX5TR
The combo that you have i think is a good combo for power but not for mileage
Use a nova 9901 and the 41021 header and use the 6.5 restrictor and don't be afraid of closing the needles and bring it to 245 degrees and you should be fine
Ricardo is pretty spot on
9853ss is not too bad as far as mileage though
remember this , the smaller the restrictor the higher the running temps