Today I took 6 small steps forward and 2 steps back.
Spent some time studying the replacement throttle cable, and found that they are the same length. The pedal-end collet is in the wrong place, that is why it has not been returning to idle position.
The net effect at the IP is over half an inch. Plus the end being wrong. I bought the recommended cable from the Summit Racing catalog, and when it didn't match I bought a second one from a different brand. But I think they are identical.
Since I had a spare, I tried cutting the collet and did not like the result. This one goes into the scrap heap.
So instead I cut off the plastic nose of of the sheath, allowing the collet to slide further into the sheath.
This brought me within 1/4" of matching the stock cable, and I once again have full access to the wide range of power output options offered by this race car engine. Plus, being 1/4" short means the pedal doesn't have the 1/4" of slop that all 3 of my rigs came with. And the smooth-sliding cable means I don't need a lead brick to reach full throttle. So it's better than stock, IMO.
Then I torched out 3 of the driveshaft U-joints (the double cardan joints seem fine).
I thought I would be gentle this time and use my new shop press instead of the sledge hammer method. I don't think I put much force on it, but the cap blew apart.
So I went back to the the old hammer method. Much happier with these results.
So now I have a conversation piece.
I also installed the new Spectra radiator and buttoned up some little stuff. Oil sender, CDR plumbing, etc.
After verifying that the truck does idle properly, I dug up the air plenum and measured the mounting bolt offsets. Of course the kit didn't come with the special double-sided bolts, so I'll be making those up and hunting down a 6" O-ring gasket.
It's a pretty piece of machined casting.
