Almost every cam I run has a 114 lobe seperation, but
a few years back I had a N/A 515 BBC sitting on the dyno, put a 6/71 on it with only 4.5 lbs of boost and picked up 200+ hp Maximum engine hp was 851 on pump gas
The cam was a 515 int/exh with 108 lobe sep,
Go figure
At 8 lbs of boost you just may be tweeking the line, but if your just wanting to put a runner together for weekend crusing what do you have to lose.