Well, after spending weeks online and many hours searching, reading, looking at pics, making phone calls, I had decided to go with my d3 heads for my 545 build. The build is a RPM crank, Eagle H-beam rods, Probe 12397 pistons, .030 over, 0.030 "down in hole," balanced, put in block, D9 block.

Parts on hand: performer rpm intake, L&L chassis exit headers, 2 3/4 primaries, 3" collectors, D3 heads fresh from shop with 2.19 intakes and valve job, D3 heads with stud mount rockers, guide plates, 2.19 intakes, and ex. bump removed, maybe some additional porting, and cut 0.010.

My problem is this: I do not want this truck (78 f250 in sig) down for long, and the ported heads with stud mount rockers are on that engine, I do not want to pull the engine, pull the heads, re spring them, check rocker geometry, check pushrod length, and wait on parts then assemble then put engine back in.

Solution: spend the money on my other D3s to get them where they will work, bad idea as if i ever want recoup cost or go bigger, I can't.
Plan B: more new heads!!
I looked at edelbrocks, Procomp, and trickflow heads. Edelbrock might be the best for my build, however I think I will have a lot of compression with the 72 cc chamber and not enough comression with the 95 cc chamber.

Pro com are more affordable but their 95-98 cc chamber is the same story.

Trick flow has 1 or 2 head options with a 80cc chamber. These will give me as built in the 11.5:1 range. I think this will work really well given my 6000' elevation and my necessity to run on pump gas.

A cam I am shooting for .550-.600 lift hydraulic flat tappet, 270-280 duration.

Will this work as planned? Will I have piston to valve contact with the one relief in the pistons? Do I need to get better that 0.030 deck clearance?

We have previously discussed the limiting factor being my chassis exit headers, and this I will accept and run it for all I can get till I decide to make a change down the road, How hard is it to port match a performer RPM to the CJ intake of the TFS heads? Something I can do or better off liquidating and getting a new intake?
Sorry about the long post, but I am getting ready to pull the trigger on something, and I don't want to make any big mistakes.