Even 305 TPI's are in the mid 14 range with minor bolt on's. Sounds like you got some issues.
Best thing to do is get the casting number off the block first. Find out what you have then go from there since you're not sure that you have a 350.
What was your mph, 60' and 1/8 mile?
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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