im not talking about the tach. I got a speedo cluster from a 5 liter. I took the speedo out. and took the speedo out of my car and put that one in. Its white faced yes, but my STOCK tach is still there. I took off the lil weight or whatever it is, the lil black thing on the end of the needle, because when im completly stopped, it reads 10mph. without it on, it reads it perfectly up until about 60, then past that, it goes from like 60 to 100 in like 3 seconds, but then i put the black piece back on , and it reads the right speed past 60. So for me to have a correctly readen 140 speedo, I need to change the cable?
and to answer the second question, I really couldnt help u buddy. I dunno why no one doesnt wanna make things for 4 cylinders. I guess when they go to these forums and see the number of them out there, they will get into it.