Best Cams For My Build

If you have trick flow heads you will want either a custom ground cam or trick flow specific cams. Then Intake valves are on a different centerline than regular pi heads.

As far as ptv clearance I am no help.

Trick flow heads by design give you much more PTV clearance. These heads are designed for maximum flow, high rev, and aggressive cams. Realize that "stage 2" encompasses a very wide range of different specs depending on the company.

As a rough guess- you will have plenty of space and PTV will not be a problem with "stage 2" cams.

Remember - more aggressive cams means possible loss of a good chunk of your lower end, a narrow power band, and loss of drivability. Match the cam to your goals. If you have gears and plan on making this a drag monster then look at your shift points / rpm band and consider the aggressive cam that will max out your powerband. If this is a street car then look for something more mild to keep drivability.

I would get a cam designed for the trickflow head to get the best outcome. The stock TF heads usually have the light 90lb springs - make sure you check what springs you have (go with at least the the 125lb version if you are FI), make sure your heads are the appropriate chamber size because there are 38cc and 44cc heads (calculate your compression ratio).

You would likely get gains from any cam but why not get something that has been proven / designed for this completely different head?

This is an example of different options from MHS:
http://www.modularheadshop.com/c-12...-6l-5-4l-2v-tfs-blower-nitrous-camshafts.html