Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - TPI 305 need rebuild.... time for 350?
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Old 05-16-2012, 09:23 AM
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HOT ROD...... FROM A CHRYSLER?
 
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TPI is no good after 4800 rpm's but I found restrictions can really choke it off.

Intake and exhaust on my truck TPI were restricted and robbing a bunch of torque and HP.

Just seems smaller valves would do the same.

Second entry down shows the difference in dyno pulls after removing restrictions. Maybe these heads are a totally different deal, but in theory restrictions cost torque and HP.

TPI DYNO PULLS
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