1st Gear Member
Join Date: Oct 2003
Location: Kansas City, MO USA
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The issue is what distributor will you use.
1980 and earlier rotated clockwise.
1981 and later rotaed the other way, so the distributor determines the needed cam.
The cam profile is not as important on a forced induction engine since the cylinder is filled during 90 deg. of rotation, versus 45 deg. in a normally asperated engine.
Remember the intake charge is under pressure and as soon as the valve opens the cylinder will fill not when the piston causes a suction.
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