We have used spray bar oiling in many Indy wedge motors with success. Big cams and big springs, it is the TURBO being used in this application that would concern me. Heck we even custom designed some spray bars for the INdy 613X heads. They actually sprayed UP at the pushrod cups before some of the lifter options of today were available.
Todd

Thanks everyone for their opinions and experiences. I have decided to go with pushrod oiling and individual shaft t and d rockers on the b1 heads I may also put a restrictive in the spray bars and run those for extra oil. Te next question and I will probably start another post is what lifters?
I have an Indy maxx block and was looking at the crane cams ultra pro roller lifters part number 66550-16 I was assured by crane that no lifter bore bushings are required to run these lifters with pushrod oiling. Any body run these lifters an how are they set up as far as bushings or no bushings.

Thanks you cody

Is your block drilled for oil pressure to the lifters? I'm pretty sure that is an extra cost option on the Indy blocks.

They have the option to bush them at an extra cost. But no it is just a standard Indy block

I have a 572 with spray bar oiling.

The heads and block are Indy. 572-13 heads with Jesel rockers.

I had a lot of problems with oil getting past the valve seals and causing the motor to produce a lot of smoke.

The problem was finally resolved but it took some time. This really soured me to the spray bars.

If I could do the whole motor over I would have started out with a pushrod set up.

My R5P7 came with pushrod oiling AND spray bar oiling. It also has spray rods between springs that spray oil horizontally, cools the springs. I think that helps alot to keep the spring pressure in 500mile race.