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Originally Posted by boldguy Wasn't the AUJP for 193 heads? |
AUJP was for the iron TPI heads, 083 castings. The 193s have the intake swirl vanes and a reshaped combustion chamber, this means they like about 3-6* less timing though a vast portion of the spark map. You will have too much timing around peak torque and through the upper rpms running AUJP.
This is a real good starting point for a 193 head TPI. This can probably be increased a little in a lighter, more aerodynamic, over-geared F-car.