The 1985 Buick Gran National V6 can take 25 psi of boost on stock internals. My friend is constantly running 25 psi, the only mods done to his Gran National is heavyer fuel injectors, VR racing intake manifold, Sparco intercooler, a custom burnt computer, larger turbo (that is all he will tell me about the turbo cause he wants to spank my Nova and he dosent want me knowing his little secret), and a shift kit. Ford 5.0 motors have forged pistons and rods along with a forged steel crank and will make more then 500 hp with stock internals. I have seen Mustangs with stock internals running as much as 18 psi of boost on a daily driven car. I am sure that they could hit and run at 20 psi.
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1974 Chevy Nova Custom (for sale)
5.7L 350 c.i.d. V8 w/4-speed man. and 3:90:1 gears
Too many mods to list
1999 Silverado Z71
5.3L 325 c.i.d. V8 w/4-speed auto and 3:42:1 gears
Flowmaster Force II 3 in. cat-back exhaust, JBA 9mm Power Cable spark plug wires, Hypertech 160 degree thermostat
Best 1/4 mile = 16.727@81.51 (Stock)
4332 pounds, 290 - 310 hp and 351 - 361 ft.lbs.
Reon Kadena & Yoko Matsugane = Perfect 10!!
Streetfire.com and all that link to it can eat my *ss!!
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