Back side. Notice the position of the rear trans mounts on both units. It actually measures out to 4 1/2" farther back on the 200R4.

You got to admit, this is two separate ways of going state-of-the-art for putting overdrives in old Mopars.

The automatic is goning in a '68 Barracuda convertible, with a 500 HP something hp 408" Magnum with fuel injected, SCT Tuned by Hemifever and will have a lock-up torque converter and a/c

The four speed is going in 493" with 3 mechanical secondary DC Performance Holleys. It's just a beast with slightly over 700hp at 5500 rpm.

I wonder which one will be quicker and faster. My best guess for both cars is the a-body weighs in at under 3000lbs wit 3.91 gears and 500+ hp just below 6ooo rpm. The e-body is in the 3500 to 3600lbs with 3.73 gears with 700 HP @5500rpm.

One of these days I will have to take them over to the metal recycling yard and get an accurate weigh in on both of them.

It looks like it should be pretty close, but the 68 will kill the 70 in the canyons just yet. More improvements to be made on the 70.

This is going to be good, but so much for buying a new truck for my retirement.

Except for the cold bloodedness of the big block at start up, it runs just as crisp and clean as the EFI car thanks to wide band tuning technology.