4.8 to th350 troubleshooting

[AussieinNC]

dirtscoots


What symptoms are you having that you are suspecting are convertor related?

Let us know the engine type, mods etc
the tans type,
if the trans is a Th350, where are you pulling vacuum for the modulator from? What is the vacuum reading at the modulator?
Do you have the kickdown cable in place and adjusted correctly?

What rear axle ratio and tires size?

Thanks

Bill