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BossHogg69 · 11-19-2010, 01:33 AM

Before I tore my '69 apart, it also had 3.73's, a TH400 trans, and a stock 454, and 275/60/15 tires. It would do 70-75 on the highway but it was a little buzzy and drank gas. 65mph was better, but it liked 60mph best and got much better mileage there.

11-19-2010, 01:33 AM	#4
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: top speed question Before I tore my '69 apart, it also had 3.73's, a TH400 trans, and a stock 454, and 275/60/15 tires. It would do 70-75 on the highway but it was a little buzzy and drank gas. 65mph was better, but it liked 60mph best and got much better mileage there. __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!!