Just a quick Question for you boys

Im looking to change the CAMSHAFT in my A15 to either.

RACING CAMSHAFT 312-7.5, DATSUN 1200 A15
http://www.ebay.com.au/itm/RACING-CAM ... ories&hash=item3cc39e1a2b

Or to the smaller

Tomei Procam Nissan A12/A14/A15 304-7.25mm
http://www.ebay.com.au/itm/Tomei-Proc ... ories&hash=item4d0085956e

Now My main question is with my internals currently i have not changed the Conrods or pistons is it possible to run either of these CAM's with out changing the conrods?

Or if needing to change the conrods what is the best option to change them to??

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Currently i am changing out the Head for a new oval port A15 Head

An Adjustable CAM Gear
http://www.ebay.com.au/itm/Racing-Tim ... ories&hash=item56471abe27

with a new Timing chain
http://www.ebay.com.au/itm/RACING-Hea ... ories&hash=item56458bfb7a

And a new Fly wheel

The only thing im not changing is the ConRods and piston setup but wanting a new CAM to get things going a bit more any help would be nice.

Also is anyone running one of these Tomei Camshafts?