Need help on 3.0L performance

[Elfer]

Hi all. I recently made a deal on a 3.0L engine and wanted a few tips on performance:
1. Im going to convert these to Webers, and am wondering if the early S cams would work.
2. If I rebuild the engine, Im thinking of using 98 MM pistons to boost displacement to 3.2, per Bruce Anderson's book. Im not too familiar with P/Cs, are there casting numbers on these? If so, does anyone know?
Any input and suggestions would be greatly appreciated.
Thanks.

[cstreit]

Webers are fine... 40mm style for street use. Any bigger will not really be streetable...

S cams will NOT work with the stock CIS pistons. DO a few searches on the board for CAMS and 3.0L or "20/21" or "964 cam" and you'll see.

Frankly there's not a huge advantage to going with webers unless you also do the exhaust. An SSI exhaust with webers should net you 15-20 HP, but you will not pass emissions with this setup.

98MM pistons are a nice increase. With sifferent shaped pistons you can run a bigger cam, but again, less streetable. the S cam is pretty radical for a street motor...

What are you planning on using the car for? Is it an early 3.0 or later one? (39mm intake ports vs. 36mm)?

[Elfer]

Thanks for your reply. This 3.0 is off a 1981 car. Ive also got a set of E cams, but would that work with the stock CIS pistons?
Ill do some more research on this on other threads as well.
Its going on a 70 car so emissions wouldnt be a factor. Im mainly going to use this on the street.

[82SC]

wildest is 964 and 20/21 with the CIS

nothing else (unless it is totally custom) will work

MJ