headers

Using Dynomax Super Turbos, 2 1/4" pipes,
{starts at the stock manifolds as the stock size}.

The compression is up slightly, from the #302 heads,
on the 318, and it does have the Mopar P4452759 cam.

Cam Style Hydraulic flat tappet
Basic Operating RPM Range 1,200-5,200
Intake Duration at 050 inch Lift 221
Exhaust Duration at 050 inch Lift 228
Duration at 050 inch Lift 221 int./228 exh.
Advertised Intake Duration 260
Advertised Exhaust Duration 268
Advertised Duration 260 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.430 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.450 in.
Valve Lift with Factory Rocker Arm Ratio 0.430 int./0.450 exh. lift
Lobe Separation (degrees) 110

sounds like the only real diff. is the carb, and exhaust piping/muffs. have you advanced the cam yet? mine is advanced 4 deg. and it really woke it up and made it love 6000+ RPM. my shift point is 7000 sooooo...... it does need new springs tho, probly stock 340 springs and retainers