ive got a 92 5.0 lx, with the following mods. headers, off road hpipe, mac cat back, 3.73 gears, subframe connectors, 190lph pump, adj. regulator, c&l 76mm mass air w/intake elbow, smog delete, etc. and a zex wet kit, stock aod, the car has 65,000 miles,. my best pass on motor was 15.1 at 93.4, on a 125 shot on 10degrees timing on street tires with 93non ethanol, it went 13.323 at 104.6 sprayin it from the 60 foot mark cause im on street tires, do u think a 150 shot will blow the head gaskets, would it be worth it thanks jake