I went froma 4.3 to a 3.9 on my 87 supra turbo.
i dont know why there was a 4.3 in it anyways, but there was. it is a stock turbo car, i checked, and i heard they were supposed to have a 3.9 so that is what i put in it. the 4.3 was not posi and bad on gas.

so heres my problem. I want the spedo to be on again. driving it for the first time, I got pulled over, no ticket, but it was quite funny. I figued out by that that my spedo is off 7-9 mph to slow.

is there any way to fix this besides getting a new tranny. I hope so!
thanks for any help
Joe

call some shops and see which ones recalaberate them! good luck!