SR in 89 S13 how to get speedo and tach to work?

[Omar]

Just bought this 89 hatch with a stock SR in it. Everything seems to be fine but the speedo is way off. Sometimes its at 60ish and when I speed up it will go to almost 100. The tach doesn't read anything.

On a side note what SR is this. It has the fins under the valve cover on the head. Just wondering.

Thanks

http://i125.photobucket.com/albums/p52/o_alcha3/IMAG1584.jpg

[cmg]

you need a DOHC cluster

[gunmetalr32]

/\/\/\ yeah your going to need a dohc cluster or just the tach

And the fined head represents a later model sr