We recently completed the upgrade on Al's Engine from the previous F2 ProCharger, to an FR-139 and changed the EFI system, to a more advanced and user-friendly Big Stuff 3 System. Special thanks to Patrick Barnhill of PTP for always going above and beyond. We are ever grateful for you tuning expertise and willingness to help in our Big Stuff 3 endeavors. Also a very special thanks to Mr. Al Fink, we look forward to hearing your racing stories with this beast.