6.5 clone. what next?

[mpepin48]

I recently purchased a box stock engine kit from ARC Racing. It came with a .615 bored carb, high tension valve springs, BSP-2 cam, and I also purchasd a billet flywheel. I have it all assembled and have ran it for a few minutes. I am still wanting to get a few more HPs out of it, and am wondering what to upgrade next. Willing to spend about $200 on it. Any advice is appreciated
http://m1291.photobucket.com/albumview/albums/mpepin07/Mobile%20Uploads/20130610_211207_zps84a8e53c.jpg.html?newest=1

 

[OzFab]

A few pics would be nice

What's the inlet & exhaust like?

I'm hoping, for your sake, it also has a billet conrod...

 

[mpepin48]

Edited to add picture. That's all I have right now

 

[OzFab]

Only things I can think of right now are
-billet rod (if you haven't already, you didn't comment)
-flat top piston &/or thinner head gasket
-head work (shave, port & polish) if not already done

There's not really any other parts you can add, it's now more about what parts you can improve

 

[Doc Sprocket]

You can also increase the compression ratio by installing a small-chamber GX160 cylinder head. Then, you can advance the timing a few degrees, and run high-test gas.

 

[OzFab]

Thanks Chris, I didn't think of timing advance

 

[Doc Sprocket]

Thanks Chris, I didn't think of timing advance

That's but one reason the membership of this forum makes a great team. On the whole, one person can't generally think of everything!