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1320racer · 10-17-2013, 06:44 PM

Based on the info you provided, this engine is making less than 500HP. He probably is shifting a few hundred RPM too high and the converter is a few hundred too loose. More rear gear will help providing he can hook. A move to a 4.71 gear should be worth at least .02 in 60 foot but will have him turning upwards of 500 RPM more at the stripe which isn't a bad thing providing his valve train is up to the task.

10-17-2013, 06:44 PM	#5
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,628 Likes: 160 Liked 759 Times in 379 Posts	Re: questions about low 1st gear Based on the info you provided, this engine is making less than 500HP. He probably is shifting a few hundred RPM too high and the converter is a few hundred too loose. More rear gear will help providing he can hook. A move to a 4.71 gear should be worth at least .02 in 60 foot but will have him turning upwards of 500 RPM more at the stripe which isn't a bad thing providing his valve train is up to the task.