All .. if you have a Series 1 L67 act now. The Series one pulleys are HARD to find.
I know I tried.
Alternatives exist but they are 2.3 inch pulleys as oppposed to 2.2 inch.
I know its a small difference but every HP counts right ?
These guys are selling a product that no one else makes that I can see.
If your on the fence about modding your pullley ... talk to these guys.
It really sucks knowing I could have spent the same ( or at least close ) money and got more hp'* for the dollar.
1992 SSEI Bonneville with all the options except heated windshield and ride control.
Mods Include 1998 SC'd Delco Ignition with Belden wires.
Autolite 104 plugs ,180 degree tstat
K&N Filter with ricepipe, 2.3 inch pulley with ZZP idler
Ported exhaust headers, Poly end links.
High flow cat. TPS tweak, Boost bypass mod
High low fan override.
" Always try it yourself. I bet the guy you pay to repair it broke a few before he fixed your'*. "