I used a hydraulic roller in my 273 for my 65 Barracuda. I got Bullet to grind me a cam to the specs in the link below, because Lunati had no blanks at the time. I used Morel Hydraulic roller lifters and roller rockers. I did sleeve the lifter bores, but ONLY because 2 of them were way big. The Morel lifters do not require sleeved bores and the oil band on the lifters is low enough to where it stays in the lifter bore. My motor is .030 over with Race Tech flat tops, 9.6 compression. Later model 302 heads worked like you described yours will be. I have a Weiand 8007 dual plane and ran a Quick Fuel 600 Brawler when we dyno'd the motor. It had headers on the dyno as well. It's a pretty mild motor, and made 265 HP and 280 lbs of torque. More than they had from the factory and all I need at 66 years old....lol. Hope this helped some.
https://www.lunatipower.com/high-ef...ulic-roller-cam-chrysler-273-360-272-272.html
