6076 ????? Please help

[onefastgn]

Anyone using this type? It's on sale on G-body parts for $595.00 rated for 610hp. I'm using a TA-49 now am i going to see any gains? I don't see any info on it. Thanks
Or should i go with the 6031?
Check sig below
Thanks

 

[forcefed3.8's]

The 6031 has the same hot side as a 49, but 1mm bigger compressor wheel. The p-trim is bigger, but will add lag. IMO, the 6031 would be a waste, the 6076 might help alittle, but if it is a street car, the 49 will be better around town.