Originally Posted by 2boltmain
Very true that roller cams have alot more lift per DUR than flat tappet cams. This is what I will most likely run:

https://www.manciniracing.com/maraenadroar.html


I run Crane ductile iron rockers with a hydraulic roller cam on an RB engine.

They work great!

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.