One of the problems, I have fought since day one, was the traction issue. I have had 3 cams in mine and always kept the cylinder pressure up between 170 and 190 (aluminum heads). This gives a 360 a preponderance of low speed torque, and I quickly worked my way down thru the rear gears that I had, landing on 4.30s (with the 2.66low trans). this makes a real nice starter gear, and you can really buzz thru the gears. But tirespin was crazy, and so was the the cruising Rs. So enter the GVOD. Then I picked up a 3.09 low gear set,swapped that in, and back in went the 3.55s. Now I finally had some decent gears and splits. I sold that 4.30 chunk right quick. The new combo had a starter equivalent to a 4.10 and the overdrive is equivalent to 2.77, so I've got both ends covered.
And so traction continues to be a problem. I took off the 750DP and swapped on a 600vacuum secondary; that sucked. I tried a 750vac-secondary, but once you've had a 750DP, you're kindof spoiled. I decided I'd just learn to not stomp it all the time.Well I was never real good in school, but I did learn to buy tires in bulk.
Point of story is; traction will be a problem,
And you might as well tub it now, or otherwise get rid of the factory rear suspension. If you don't, some guy with a well-sorted teener is gonna blow you away.lol.
Here's my combo, just FWIW
367LA , KB 107s,at 10.9 Scr,with Q set to .034,and stock bushed teener rods circa 1969? IDK, the late ones same casting numbers I think as 340s,and new plasma moly rings. Plus OOTB closed-chamber Eddies. The cam is an old Hughes HE3037AL FTH with lifts of .549/.571 with 1.6 roller-tipped-only Mopar adjustable arms.This cam is 230/237/110 and 276/286 advertised. I also used the Hughes anti-pump-ups in at .020 preload,and their 1111 springs,shimmed up til she revved well over 7200 and called it done. I run a Milodon roadrace pan with their tray and pick-up, a high volume pump,some oiling mods, the Airgap, TTIs with twin 3"full-length pipes, and an ancient 750DP with fresh cold air. And a rock-solid cooling system that runs a minimum 205*F
>I decked the block for .005 pop-up. Up from about .011 down. With a Magnum block you might not have to do this,IDK.
I run the .039 FelPros,now on their third install, those are some good gaskets. (The .028s popped out about the same time I popped that 292/508 outta there).
>Oh yeah, This engine has never run anything but 87E10, except the very first time I tracked it. I thought that it might be prudent to put some better gas in it for that day. That was a waste in hindsight,lol.
>If the cam ever dies,I'm gonna try a solid 225 to 228/108-106 and bump the Scr back up to 11.2 and no other changes.; I had good results with thosePlasma Molys. I'm itching to get high 20s mpg again.............. Yeah I know, everybody says that.
I think I covered it.
Done I think
