Bombero,
You did say that he is your friend, right?
All I know is, if he were my friend, I wouldn't do anything that may cause him to strain that poor, frail, "cackle" & "rod-knocking" prone "powwwwerrrrstroke". You know how moody they get if they haven't had their 15,000 mile anti-cavitation additive, or their #8 cylinder injector fix.
I wouldn't have the heart to do that to a friend. Maybe it would be better if you took him out & enjoyed an nice, mello, cup of tea, & some knitting lessons.
Afterwards you can get back to ripping chunks of pavement up when youre out cruisin' with the TDR boys... : ) IMO.
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2k, 22k miles, QC, 4x, 6sp, 3. 54,285/75r16 bfg/at, stock air cleaner (reliable), silencer ring "in" (runs better), popup cmpr, 9000 lbs. 14. 5-16 mpg (w/camper), 17. 5-19 (empty). VA, DD1's, PS Boost module, DD Elbow... also, Nitrous Oxide piped direct into the block (stealth - to keep the warranty), twin turbos, 10 gallon per minute fuel pump, ECM right out of Don Garlit's Top Fueler (he gave it to me) (for letting him ride in my truck), Super Modified DD1 Injectors ("Hand Honed" with a 1/4" reamer & my 12v (thats "volts" not "valves") Makita).

More BOMBING to come!!