Hello, i have a 98 silverado z71 ext. cab. sb. Done a few mods to it like air intake and plug wires. Also have vforce exhaust. Hoping i can get some help here if i need, looks like a great site. Me and my dad are also rebuilding a 88 silverado reg. cab as a muscle truck. we are swaping in a 400 pontiac in place of the tired 305. Should be a fun project and may need some ideas. thanks.

 

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