I am trying to decide on which cam to pick for my 1968 318 with NP435 4 speed (D100 TRUCK) 3:23 GEARS - mostly around town driving with some highway time a few times per year. Occasional hauling loads.

I am going 30 over and keeping the stock crank. I am looking for fuel economy and low end while staying with smooth Idle.

I've seen the Comp 252 recommended but the shop recommended the Lunati 10200700 or the Erson E420101....

BRAND COMP Cams
Manufacturer's Part Number CL20-208-2
Cam Style Hydraulic flat tappet
Basic Operating RPM Range 800-4,800
Intake Duration at 050 inch Lift 206
Exhaust Duration at 050 inch Lift 206
Duration at 050 inch Lift 206 int./206 exh.
Advertised Intake Duration 252
Advertised Exhaust Duration 252
Advertised Duration 252 int./252 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.425 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.425 in.
Valve Lift with Factory Rocker Arm Ratio 0.425 int./0.425 exh.
Lobe Separation (degrees) 110
Grind Number 252H

BRAND Lunati
Manufacturer's Part Number 10200700
Cam Style Hydraulic flat tappet
Basic Operating RPM Range 1,000-5,000
Intake Duration at 050 inch Lift 208
Exhaust Duration at 050 inch Lift 213
Duration at 050 inch Lift 208 int./213 exh.
Advertised Intake Duration 250
Advertised Exhaust Duration 256
Advertised Duration 250 int./256 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.454 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.454 in.
Valve Lift with Factory Rocker Arm Ratio 0.454 int./0.454 exh.
Lobe Separation (degrees) 112
Grind Number


BRAND Erson Cams
Manufacturer's Part Number E420101
Cam Style Hydraulic flat tappet
Basic Operating RPM Range 1,000-4,000
Intake Duration at 050 inch Lift 208
Exhaust Duration at 050 inch Lift 208
Duration at 050 inch Lift 208 int./208 exh.
Advertised Intake Duration 280
Advertised Exhaust Duration 280
Advertised Duration 280 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.420 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.420 in.
Valve Lift with Factory Rocker Arm Ratio 0.420 int./0.420 exh.
Lobe Separation (degrees) 111
Grind Number RV10H