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Paul Precht · 07-11-2014, 04:24 PM

Back in 74 I was bracket racing my 63 Ply at West Hampton with a single four 413, a small Lunati cam, 10” convertor, 4779 Holley and cheap headers. Without me in it the weight was 3350 with about ½ tank of gas. It typically ran 12.0s to 12.10s and occasionally dipped into the 11.90s. at 113-114.5 MPH. That summer I put the 413 into a 67 Cuda fastback that I bought from a neighbor. The Cuda had stock 273 suspension, full interior a well used set of 9 x 14 slicks and the same 10” convertor. I put an 8 ¾ rear and K member in from a 68 383 Cuda that a friend stripped. I expected it to be a lot lighter but it weighed 3330 with half a tank of gas so a mere 20lbs was the difference. It ran 11.80s and 90s at 116-117.5 the whole summer. 2 tenths and 3 MPH just in body change, I was surprised at the time.

07-11-2014, 04:24 PM	#116
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 733 Likes: 365 Liked 327 Times in 121 Posts	Re: HP Adjustments on NHRA.com Back in 74 I was bracket racing my 63 Ply at West Hampton with a single four 413, a small Lunati cam, 10” convertor, 4779 Holley and cheap headers. Without me in it the weight was 3350 with about ½ tank of gas. It typically ran 12.0s to 12.10s and occasionally dipped into the 11.90s. at 113-114.5 MPH. That summer I put the 413 into a 67 Cuda fastback that I bought from a neighbor. The Cuda had stock 273 suspension, full interior a well used set of 9 x 14 slicks and the same 10” convertor. I put an 8 ¾ rear and K member in from a 68 383 Cuda that a friend stripped. I expected it to be a lot lighter but it weighed 3330 with half a tank of gas so a mere 20lbs was the difference. It ran 11.80s and 90s at 116-117.5 the whole summer. 2 tenths and 3 MPH just in body change, I was surprised at the time.