I have a 85 Impala with the carb'd 305 and 700r4
Its been about a week since I drove it but today I decided to use some SeaFoam and take her for a spin.
Before today it would shift fine without a problem but after I used the SeaFoam it seems to hold 1st a lot longer, around 3k it shifts from 1st and it jerks a tad like I have a shift kit
(I don't )
The only things that changed since the last time I drove is the outside temp(got colder), installed headers and used SeaFoam.
So what do you guys think is goin on? Is my trans going out?!