ummm i have PROFORM and i use that name loooooosely and it SO FAR hasnt ****ed up (thats actually a miracle!) yet! its completely adjustable and the supplied allen wrench hasnt borke or craked yet either its so far a great unit! it can adjust to the advance you need within seconds they are well worth the money i would get a crane version its not proform or accel and thats the best part
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89 firebird formula
356 10.5:1compression
comp cams xe262 cam
performer rpm intake
#1405 edlebrock 600
sportsman 2 heads 64cc 2.02/1.60 valves 200cc intake runner
msd 6al
h.e.i. proform 50,000 volt vac. advance ditributor
700r-4 with 3.08 first gear and 3.23 posi 7 5/8 rear end.
b trans shift kit(will kill shifts...suck dong!!)
shorty heddman hedders with custom 3" pipe y-pipe back(no damn cat!) with 40 series flowmaster!
future mods: 406 roller REALLY REALLY REALLY RADICAL!!!!!