Another, Damn it, horsepower guess ??

I would think torque peak would be at 4750 and hp peak would be about 6500 with 260@050 and those heads. Strong 4-6500.

10:1 is pretty low with that much at 050 unless it has a pretty wide ICL and lower overlap. I would think around 11.5 would be about the right compression.

I think 550 is a reasonable guess with 1 7/8 headers and if that carb was sorted out but lower end torque certainly giving up more then needed due to the low compression/cylinder pressure for the camshaft.

It is a package deal you said but it does seem that the camshaft is the part that stands out as a bit of a mismatch compared to the current converter and compression.

If you don't like Hughes thats fine but this I think is an example of a cam that would work really well for a 3500 converter and 10:1 compression. I think think it would pull nicely to 6k and have plenty of cylinder pressure with 10:1 unless your at a high elevation.


STL4650AS-8
578/588 @1.5
246/250 @050
108 in at 104




Just my thoughts.