Everything is stock, stock intake, exhaust manifolds, MAF. I was just wondering if you could use 19# injectors from a mustang on a stock explorer. The motor is rebuilt w/ a mild TFS stage 1 cam and roller rockers. That is all the performance enhancements I have done. I am having a hard time getting the truck to start and was wondering if the mustang injectors I put in the truck when I put it back together would work or if that was my starting problem. I know I am getting spark from the coils and the injectors are getting a signal (checked w/ a noid light). I just didn't know if the inpedence or the "signal" was different. Has anybody used them in their explorer? Or could the cam be the problem?