Help me choose camshaft...

[70bigblockdodge]

Higher compression is needed/ wanted with a lot of duration and overlap to keep cylinder pressures up. If you pick a cam that big it will be a terrible driver and need a lot of supporting pieces. Stay below 275° advertised duration and you should be fine.

 

[Zwap]

How about Lunati 10230701 (Previous Part Number: 60301)

Hydraulic Flat Tappet. Best mild performance cam. Works excellent in fuel injection applications with performance chip. Makes approximately 19" vacuum at idle. Great for performance oriented marine applications and heavy towing applications. Perfect street rod cam. Has slightly noticeable idle, works with stock converter, A/C, power brakes and stock valve springs in most cases.

• Advertised Duration (Int/Exh): 256/262
• Duration @ .050 (Int/Exh): 213/220
• Gross Valve Lift (Int/Exh): .454/.475
• LSA/ICL: 112/108
• Valve Lash (Int/Exh): Hyd/Hyd
• RPM Range: 1000-5500

What do you think about that one for my engine?

 

[Big_John]

Take a look at this one.

IMHO, the wider LSA is going to give torque across the RPM range. The exhaust duration is up a little with a little less lift, but I think that's a good trade off.

I've used this cam in a slightly lighter car with the same configuration except for a slightly higher CR and a 3.23 rear. It worked real well, pulled hard at the low end and even got decent gas mileage.

Intake Duration, Nominal
268°
Exhaust Duration, Nominal
284°
Intake Duration @ .050”
208°
Exhaust Duration @ .050”
221°
Intake Lobe Centerline
113° ATDC
Exhaust Lobe Centerline
117° BTDC
Lobe Separation Angle
115°
Intake Lift
.450”
Exhaust Lift
.458"

 

[Zwap]

That one looks nice, what kind of cam is that?

 

[Big_John]

That one looks nice, what kind of cam is that?

Mopar Performance P4452783.