Vintage Mustang Forums banner

Solved my high rpm breaking up problem!!!!!!!!

997 3
WHAHOOO! I have been chasing this one around for months now, trying everything from timing, to fuel pump, to exhaust blockage, to ignition system. At work today I had a brainstorm in response to some info someone posted for me on another board. I went back in and spaced my jets ## further apart and compensated for that change. Before I could not get it above 4800rpm without it breaking up and only building spotty power. Had it to 7000rmp tonight just as smooth as can be! Ok, better, just had to vent!

67 mustang coupe
70 mustang mach 1
88 mazda/ford mx-6