Ronnie Givens

Hi i just purchased a 1990 mustang lx 5.0 speed.The car is mostly stock but it does have an agressive cam (not sure about the lift/duration) and long tube headers and flowmaters 40's dumped at the rear.And a 3:73 out back.My problem is when i floor it the rpm's barley move and the car feels like it under a load.I was wondering if this was a timing issue.Thanks hopefully somebody can help me.

mattdel

Timing, weak fuel flow/pressure, clogged cats, dead MAF