Oh, yeah, about the timing - these engines will run (crappy, but run) with gross out-of timing conditions. A performance mod: These trucks were spec'ed to run of crap gas - 85 octane, I think. This is probably why the timing is so conservative. With modern commercially-available gasoline 87 R+M/2 octane), you can probably advance your timing to 8~12 BTD for a bit better performance. Just Doug, er, I mean retard it if you get any detonation.
Any thoughts on this matter?
"other peoples junk, is something or other" - Militarypotts 02/07/2011