Nate S
Well-Known Member
I was looking at some factory distributor and timing specs and just can’t figure out why these were done this way. Some are pre-emissions so I don’t buy that as a reason. Anyway, most of us would agree that a B or RB wedge does best at 38*, some might argue less and that’s fine. So we look at some factory numbers and I just wonder WTF? *Note, figures here are in proper crankshaft degrees.
‘64 361 init 10*, w/ all mech 33*, w/ vac 59*
So this seems reasonable, a bit short of our 38 but ok.
‘64 426w init 10*, w/ all mech 26, w/v 44
This seems pretty short on advance
‘64 413 390hp 300k, init 12.5, w/m 23.5*. W/v 41.5*
This seems really short.
‘70 383-4 init 0, w/m 22, w/v 44
Still seems wimpy
‘70 440-6 init 5*, w/m 31, w/v 51
Seems more reasonable
‘70 426-8 init 0, w/m 30, w/v 46
Hemis like less, this seems the most believable of the bunch.
So have any of you actually used a stock distributor before actually timed to stock specs? Do the cars do ANYTHING? The most promising of this bunch is the old 361. Some with 22* all-in mechanically? Does that even work? Not looking for “I put in a single ball point pen spring so it’s all in at 400rpm etc. I know that, I do it too, curious if these actually could have performed as spec’d from the factory.
‘64 361 init 10*, w/ all mech 33*, w/ vac 59*
So this seems reasonable, a bit short of our 38 but ok.
‘64 426w init 10*, w/ all mech 26, w/v 44
This seems pretty short on advance
‘64 413 390hp 300k, init 12.5, w/m 23.5*. W/v 41.5*
This seems really short.
‘70 383-4 init 0, w/m 22, w/v 44
Still seems wimpy
‘70 440-6 init 5*, w/m 31, w/v 51
Seems more reasonable
‘70 426-8 init 0, w/m 30, w/v 46
Hemis like less, this seems the most believable of the bunch.
So have any of you actually used a stock distributor before actually timed to stock specs? Do the cars do ANYTHING? The most promising of this bunch is the old 361. Some with 22* all-in mechanically? Does that even work? Not looking for “I put in a single ball point pen spring so it’s all in at 400rpm etc. I know that, I do it too, curious if these actually could have performed as spec’d from the factory.