I'd have a LONG talk with the dude. Any lifter that isn't hydraulic needs that modification. I don't care how tight the lifter bores are, they are a HUGE leak.
Also, if the guy doesn't understand enough to tube the block and NOT use a crossover he needs to rethink the oiling system on a Chrysler.
The crossover tube is worthless. The tube in the oil gallery is a BIG deal.
I’ll block it off for sure. Whether he wants to bush the lifter bores, or block off the galleys he may want to determine by measuring the lifter area and make sure they are round, and tight.
I can’t remember what he said was controversial on the crossover line, but he backed off.
His bread and butter is Chevrolet’s though he is a Pontiac guy. Made his own Pontiac heads out of aluminum years ago, as no one at the time made any he liked, there on the engine in his Vega.
I may introduce him to the mopar book on A engines. I should refresh myself on a few things also.
I definitely want to sonic test, to determine what bore size is safe.
