Quote:
Originally Posted by b-man
For a heavy at like a full-weight ‘69 GTO I’d be looking at a more robust 4L80E rather than the somewhat questionable 200-4R.
You’re asking a lot to run low-11s in a street driven car like that. We’re talking 3900 pounds without the driver.
If I was doing something like this I’d be running an aftermarket block with 500+ inches and a 260 degree cam to make a solid 600 horsepower without having to over stress the factory block with high rpms. Cubic inches are your friend especially on the street, those additional cubes will soak up a long duration cam and make it easier to drive.
Your 474 needs a bigger cam and a converter that stalls high enough to take advantage of it.
When you already bought most of the parts it’s hard to recommend just a cam that’ll get you there that you also already bought.
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I didnt want to go with an electronically shifted tranny. The 200-4r i am getting is an art carr unit from california performance. theyre supposedly good for up to 750 hp. I know im asking alot. I dont want to be too unrealistic. I spent enough cash as is but will spend a little more to try and reach my goal. A similar build with a similar cam made 578 hp with a 850 edelbrock carb, so i think i should be close to 600 when everything is said and done. I just wish i knew more about camshafts before placing that order. I just feel like im leaving some hp on the table with my cam and possibly the intake too. My engine builder felt better about using the performer versus a torker 2