I have a 5-Speed '88 Bronco with a 5.0 L which I've converted to a 5.8 firing order with a 5.8 RV CAM. To accept the 5.8 firing order we had to do a conversion on the computer system. I'm running shorty headers and a 3' exhaust, single flow master, out the passenger rear. The exhaust was professionally installed above the frame for clearance. I plan on a 4' suspension lift and 35-36' tires (after I knock off my Wife and have millions of dollars). The tires are 33,12.5 on15s. I plan on running a 383 conversion in the near future. It will be a Ford 383 conversion. I have a safe driveway.....NO CHEVY's.