[BevanWright]

I agree with some of the posts earlier in this thread regarding over exaggerated horse power claims. I have ridden in plenty of modified v8s, and seen lots of different claims, but most engines are pretty tame.

It was only when I got my Cobra that I appreciated what a really big horsepower car was like, and how different my cobra is compared to all the others that I have been in (427, 428, 302, 351, 429 etc).

My car was apparently dynoed at around about 630 hp years ago, and since then has a bigger cam and better flowed heads.

I would be interested in any Chev experts (sorry ford guys) to give me what they would estimate for this setup:

Basically a 454 LS7 Crate BBC with 13:1 compression, LS7 oval port heads-ported (iron heads) running av-gas, Harland Sharp roller rockers, full race cam (sorry dont have the specs at work but power range is between 3 and 7k), dry sump, Hillborn injection, big headers, and side pipes.

I am always surprised by the number of guys on this forum who say that they have 700 hp etc that they use as road cars. My car is a monster to drive on the road, lumpy cam, far too fast for driving in traffic, and really unless you are at over 60 mph is pretty hard work. I have been over 190mph in this car, so it must be making big power, but how much?

Are there such huge variations in dynos?