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Old 06-11-2019, 12:03 AM
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Lee Lee is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Crosby, TX (East of Houston)/Texas/USA
Posts: 2,059
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2.5" pipes into 3" Flowmasters, into 2.25" tailpipes

vs.

3" pipes with H, into 3" Borla ProXS, into 3" mandrel tailpipes.

7.8:1 455, unported heads, Tri-Y headers, Performer intake, Q-jet (metering rods changed to optimize both configurations), custom low-lift 222/242 116lsa cam.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'.

'67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust

My webpage http://lnlpd.com/home