Roller cam idle RPM

I agree on the convertor. Give Lenny a call at Ultimate...He's a member here to. On the idle speed, that's a lot of spring over the nose. There would be a couple ways to address the idle oiling if it had to. But at that compression and cam choice, I'm guessing that wasn't ever talked about..lol. I only use bushings in a roller cam block but typically I would not have that much cam or compression in anything I build unless it was race only. I build street engines primarilly that sometimes race. As far as lifter oiling, they are simply splash fed by the crank's windage. I would not be too concerned with idle speed per se as the needle bearings in the rollers are not designed to be submerged in oil. However, if you street drive it you need to make some extra effort and once a year pull the valve springs and test them for tension and at least every two years have the lifters rebuilt. A few street miles can be much harder on them than several days at the track. The springs lose tension and then the lifter is allowed to bounce and then they come apart in no time. The roller must stay in constant contact with the lobe as they dont do well with bad harmonics that poor valve control and weak springs bring.