Thread: wanted 500hp from 454

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i would like more cr 10.25:1 so to get it up to 6500 +there will be a trade off but i think it would run better with the bigger cam with the lower CR if you run it way up on rpms and is a light car. i would not run it so hard and gear for tq any ways

Thanks fellas!
I'm pleasantly surprised that you would take the time to reply with your views, which I sure appreciate.
A couple of things - I don't have any plans to exceed 6000rpm, the car is a street car after all. But it will get the occasional fun outing on the track or strip.
I read somewhere that a hydraulic roller does not start to show a clear superiority over a flat tappet cam until duration gets up around 230 deg. I am right, aren't I, that a roller cam behaves in a milder way, compared to a flat tappet with the same specs?

Thing is, I already have the hydraulic roller tappets (the expensive bit!) so I want to stick with this type of cam. The engine's staying put, so I won't be bumping compression. The 230/236 112 deg .547/.547 cam was recommended by the Comp Cams tech guy, after I explained what I wanted from the car - so I bought it. Apparently it's a jet boat grind!
But.. if it's going to run like a dog because static compression of 9.8 isn't enough, then I'll go with the Crane 226/234 that techinspector1 suggested. Will my CC cam work at all - what do you think??

One last thing - I hope there won't be any valve/piston clearance issues with the cam change?

I'll try and post a pic of the car.

Chris