The 70 cougar already has a 9 inch rear,it's currently open with 3.00, I will probably use either 370's or 389's,should I use a detroit locker ? I dont know the best way for the posi rear?? What size or rpm stall converter should I use??I'M gessing if I tone it down to 11 to 1 or so compression, torque should be around 500 ft pounds ,will that be ok not to twist or damage anything ?I'm definitly using sub frame connectors,but will that be enough alone?sound like I should go with 2.19 intake valves and will do a little porting.When I used the desktop dyno the stealth knocked down the high rpm h.p. but torque on bottom end was better than victor jr,is the torker intake similar to the vic.jr.?? should I use H beam or I beam rods?Any other advice??Thanks,Randy