any one try dropping their engagment to say ---4000 instead of 4400 ,,does it bog comming out the gate???? using the EPI weights and with the 140-330 it engages hard enough to trench and the epis dont seem to pull good on top but awsom bottom and mid ,, currently running 58's at 8-12K ran 82-8300 but added a PA head and HPS can and was going to go to 62's but when I looked at the price I was thinking of just going to a 120-290-300 spring?????How many RPM do you think30 pounds of final spring equals???
any suggestions? was also thinking the Black purple secondary spring might be to stiff causing the shift to slow down on top???? do the MTX pull on top end and good track speed?? any one try the new MDS for the pro yet ,,I know they work on the cats,,,,,,
any suggestions? was also thinking the Black purple secondary spring might be to stiff causing the shift to slow down on top???? do the MTX pull on top end and good track speed?? any one try the new MDS for the pro yet ,,I know they work on the cats,,,,,,
