I also have the vortech and the 3.125 pulley, borla eq header and exhaust, with supporting mods for cooling. Use Sunoco 100 map 4, 50:50 with 100:93 map2, map 1 for 93. For the price (10.40 gal) you get from 30-50 whp, completely dependent on your tune/tuner. If use the 50:50 results are similar but cheaper.
So next step is over spinning with 100 and hope for the best (100whp more and happy engine) but be prepared for new engine with forget internals!
If you don't have race gas in your area, over spinning on stoke internal would... Most likely... Well if you do it, tell me what happen, I may have an idea but no evidence
