[Mark Crowe]

I have a 1977 3 lite Turbo, and am considering going the naturally aspirated route for various reasons.

My motor was rebuilt about 10 000 km ago, bearings, rings etc, pistons and liners were ok.

I believe I should be looking at bumping capacity up towards 3.4 or 3.5, I want to try and avoid machining casings if possible, and I understand going to 100 mm requires some work on the casings.

I also want to have a fairly high CR, but not to the point that detonation on lousy fuel becomes an issue. I am junking the K Jetronic, and have a good programable EFI system available, can handle up to 800 hp, single or twin plugs

Questions are, will stock turbo heads work, should I open ports up, or go 3.2 head route? Twin plugging if less than 100mm- worth it?

I have a set of SC cams, will they work or do I need to look at some thing else, (mainly street use)

What pistons set can be recommended in line with goals above?

Any ideas on HP and driveabilty? I have the 4 speed turbo box but can change to G 50.

Look forward to hearing from those that have been down this road before!

Thanks

Mark