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Bobby Lundholm · 04-09-2007, 10:20 AM

Anyone found any significant gains on performance by making the 4/7 change? Just wondering if it is worth the time and effort.
My combo is the 255/280.

Bobby Lundholm
1969 Nova
9516 G/SA

04-09-2007, 10:20 AM	#1
Bobby Lundholm Member Join Date: Dec 2006 Location: Charlevoix, MI Posts: 423 Likes: 94 Liked 87 Times in 34 Posts	Chevy firing order Anyone found any significant gains on performance by making the 4/7 change? Just wondering if it is worth the time and effort. My combo is the 255/280. Bobby Lundholm 1969 Nova 9516 G/SA __________________ Bobby Lundholm 3516 G/SA