James,

Sounds like fun! It should be one quick 1000 when your finished! A good clutch is a must. I have a stock one in at the moment and it slips bigtime. Took it for a long drive today and it just
slips 5500rpm plus. The 5 speed is going well at the moment, when i find a toyota box i will sell u this one but i need other things first.

If your going to go for forged pistons are u going to bore it out pretty big aswell? I would be for sure. If your going to use the stock cam and an A15 crank, it will be pretty tourqey 2000+
i would think?

Fester, you can only get 3" in mandrel bends. 2.5" is the biggest u can press bend. About the cost im not 100% on the difference. If i were to do James exhaust in 3" i would think it would
cost roughly $1000+. In 2.5" mandrel, around the $800 mark and press 2.5" around $600. This is still just a guess cause i dont quote. I guess 3" has the most potential for max hp as it flows
best but is it worth the $$? Thanks Mareo for clearing that up about the back pressure! Its all clear and makes sense now! cyas

Scott
Davo