Ok I install a GV overdrive in my 69 mustang about a year ago. 445 stroker, 850 holley,294s cam,389 gear, big in and out wide ratio trans 4 speed, 28 inch. tire. After adjusting carb. to what I like and MSD dist. I finally got to take the car on a 250 mile ride today. 85 % freeway at 75 mph at about 2750 rpm. Car ran great and I checked the gas mileage and I got 14.1 mile to gallon. I think that is great and I am very happy with this combo. Before todays ride all the miles were around town and never had a chance to take it on a long ride. Mostly been raining here in WI.Though I would share this and a big thanks to Jay, Ross, 66 Fairlane, Barry and every one else on helping with the carb,dist,and GV.

Thanks Ross and I went with the 30 cc pump in the back. I also went with the pink cams front and rear. May try the blue cam up front. Had good luck before with the blue. I also jetted the front with # 80 and the rear with # 88 and plugged the rear pv. The front pv is # 6.5 which seems to work. Only put 60 miles on so far buy seems good. Need to drive a little more.

Thanks Paulie. Do you think strip gears are noisier then the street gears. The reason I ask is a friend of mine has a set of richmen gears and they are noisier. I checked the back lash and the pattern and every thing checks good. This is a nine inch. diff. I have set up a lot of theses in the years and I thought once on this site that some one said that the strip gears are noisier in a street car. So I am thinking that maybe he has the wrong set of gears in his car. Does that make any since? Thanks again

Hi Ross

Thanks for your respond but would you use the pink cams in front and rear and both 30cc pumps. Now what I have is blue cam front and brown cam rear,30cc pump front and 50cc pump rear. Just trying to understand a good starting point. I know everyones engine likes something a little different.

The number on the carb. is 4781-3 which came with 82 jets front and 78 jets rear? 30cc front pump and 50cc rear pump. Cam # 427 hole 1-front and cam # 380 hole #1.

Thanks Brent for getting back to me on this. I will give a try.

So a person would have to bare the small red wire and not brake the connection. The wire is a one piece on the MSD box  and needs to be stripped to do the job. A little more tougher of a job then just taking a wire and going to the coil.  Amatures would most likely still use the jumper wire from  pos. to coil and jump the solenoid and it would not start? But I guess if you are going to steal a car with MSD you should know what you are doing? What would be a good fool proof system with a MSD box to use for the thieves can not steal the car.