b1 heads,indy block oiling issue
 

I have a set of original b1 heads with t&d rockers on a indy maxx aluminum block. it has the drain lines from the heads to the pan and on the stand at 2-3k rpm its starts to run out of oil. the indy block holds more in the valley area and with the lines I put extra oil in it and it still is going dry. any suggestion or info would be greatly appreciated. THANKS